Dr. IOANNIS TOMKOS 

Associate Dean, Professor at AIT

Dr. Ioannis Tomkos, has the rank of tenured Full Professor at Athens Information Technology Center since September 2005 and serves as Associate Dean since June 2004. He joined AIT as a tenured Associate Professor in July 2002. In December 2002, he became an Adjunct Faculty at the Information Networking Institute of Carnegie-Mellon University, PA, USA. While at AIT, he initiated and co-developed new graduate programs (e.g. the M.Sc. on Management of Business Innovation and Technology) and has played an important role in AIT’s development. At AIT he founded and serves as the Head of the “High Speed Networks and Optical Communication (NOC)” Research Group, which performs advanced research related with its areas of interest. The NOC group participates in a number of EU funded research projects (FP7 ICT-1 STREP DICONET, FP7 ICT-1 STREP SARDANA, FP7 ICT-1 NoE BONE, FP7 ICT-2 STREP APACHE, FP7 ICT-2 NoE EUROFOS, EU FP6 IST-3 SSA BReATH, EU FP6 IST-4 STREP TRIUMPH, EU FP6 IST-4 NoE e-Photon/ONE2, COST 291 TDON) in all of which Dr. Tomkos is representing AIT as Principal Investigator. In all these projects Dr. Tomkos also has a consortium-wide leading role: he is Chairman of the EU COST 291 project, Project Leader of the EU ICT STREP project DICONET, Technical Manager of the EU IST STREP project TRIUMPH, Leader of two Joint Projects in the framework of BONE NoE project, Leader of a Joint Project in the framework of e-Photon/ONE2 EU NoE project, while he serves as Steering Board member or/and WP leader in other projects. The NOC group participates also in collaborative research and consulting projects with high-tech industries. The level of funding raised by AIT due to the research activities of the NOC group exceeds 2.3 Million Euros. In 2002, he also founded the “Optical Networking” laboratory at AIT. His current research interests cover technical aspects of telecommunication systems and networks and technoeconomic and regulation/policy aspects of broadband networks and services. On these topics, he has developed the syllabus and teaching material of several graduate and executive/professional training courses, including those on “Optical Networks”, “Optical Communications”, “Telecom Management”, “Technoeconomics for value analysis”, “Policies and regulations of the ICT industry”, “TPC/IP networking” etc. Dr. Tomkos has acted as consultant for high-tech ICT companies and his work (technoeconomic studies and business planning for broadband networks and FTTx deployments) has resulted in measurable benefits (multi-million Euros contracts) for his customers.
His professional career started in 1996, when he joined the University of Athens, Greece and participated in several national and European research projects as a Research Fellow. His work there was related with WDM technologies for optical networks and with digital transmission systems for access networks. In January 2000, he joined the Photonics Research and Test Center of Corning Inc. as a Senior Research Scientist. His research focused in theoretical and experimental studies related with WDM optical networks. He studied extensively the performance and design issues of metropolitan/regional area optical networks and led successfully several projects. He was then subsequently involved in studies related with transport performance and technology trends in ultra-long-haul optical networks. At Corning Inc. he demonstrated customer-driven and results-oriented spirit contributing to several commercial success stories. In June 2002 he was elected a Faculty member at the Computer Engineering Department of University of Patras, Greece. In July 2002 he joined AIT.
Dr. Tomkos has received the prestigious title of “Distinguished Lecturer” of IEEE Communications Society for the topic of transparent optical networking. Together with his colleagues and students he has authored about 55 peer-reviewed articles published in international scientific journals/magazines/books (over 30 IEEE sponsored) and about 150 presentations at conferences/workshops and other events (over 110 archival publications in conference proceedings). He has co-authored a book on Optical Network Design and Modelling and he has authored a book chapter in the Wiley Encyclopedia of Telecommunications and Signal Processing, related with metropolitan area broadband networks. He has also published over a dozen articles in business/technology magazines about technical, technoeconomic and regulation/policy aspects of telecom networks. He has received many invitations from conference technical program committees (most notably twice from OFC) to present his research results as Plenary/Invited/Tutorial Speaker or to coordinate a set of presentations as Session Chair or Panel Moderator. His published articles have received more than 500 citations. He holds 2 patents and has several patent applications pending. He is a member of the “Photonics21” Technology Platform that prepared the EU Strategic Research Agenda in photonics. In 1991, 1992 and 1993 he received Educational Scholarships by the Hellenic Institute of National Scholarships. In 1998 he received a Grant and also the "Best Paper" Award from IEEE-LEOS. In 1999 he received a Scholarship from SPIE. In 2000 he was awarded by Corning Inc. for his contributions in the development of a new optical fiber. In 2002, he received the "2001 Corning Research Outstanding Publication Award".
Dr. Tomkos is actively offering his services to the international scientific community. He has served for two years (2004-2005) as the Vice-Chair of the International Optical Networking Technical Committee of IEEE Communications Society and for the period (2006-2007) he served as its Chairman and a member of the IEEE ComSoc’s Techical Activities Council. Dr. Tomkos is the IEEE ComSoc Representative in the IEEE Nanotechnology Council. In addition he serves as the Chairman of the IFIP working group on “Photonic Networking” and a member of the IASTED Technical Committee on Telecommunications. He was the Co-Chair for the Optical Networking Symposium of IEEE Globecom 2005. He served as General Co-Chair of the Optical Networks Design and Modeling-ONDM conference (2007), General Co-Chair of the International Conference on Transparent Optical Networks-ICTON (2008), General co-Chair of the Broadnets 2007 conference, General Chair of the Accessnets 2006 conference, and a Steering Board member for the Broadnets, ANTS and AccessNets conferences. He also serves for a number of years as a member of the Technical Program Committees for the major conferences (e.g. OFC, ECOC, IEEE GlobeCom, IEEE ICC, etc.) in the area of telecommunications/networking (more than 40 conferences). He was also the General Chair of the workshop on “Promoting broadband in NMS countries and Greece”, General Chair of the workshop on “Optical networking perspectives vs. optical technologies reality”, General Chair of the workshop on “Challenges in Optical Networking”, the General Co-Chair of the workshop on “Design of Next Generation Optical Networks: from the physical up to the network level perspective”, Co-Chair of the ECOC 2007 workshop “Networks for IT: A new opportunity for optical network technologies” and a member of the organizing committee for the strategic NSF/IST/COST workshop on “The Future of Optical Networking”. He has also co-chaired 2 international workshops on the topic of “Optical networking for Grid applications” that were held in conjunction with major international conferences (ECOC 2004, Globecom 2004). He is a member of the Editorial Board of the IEEE/OSA Journal of Lightwave Technology, the top scientific publication in the field of optical communications, covering the thematic area related with "Networks & Switching". He is also an Editor for the IET Journal on Optoelectronics and for the International Journal on Communications. He served as Guest Editor of the Oct 2005 special issue on “Optical Networks” of the IEEE/OSA Journal of Lightwave Technology. He is also a Guest Editor of a special issue on “Simulation techniques for optical networks” of the Journal “Annals de Telecommunications”, and a Guest Editor of a special issue on “Digital Optical Networks” for the Elsevier “Computer Networks” Journal. He is also an expert Evaluator for EU research projects and a Reviewer for major scientific international journals.
Dr. Tomkos received the B.Sc. degree in Physics from the University of Patras, Greece, the M.Sc. degree in Telecommunications Engineering and the Ph.D. degree in Optical Telecommunications from the University of Athens, Greece. During his graduate studies he was a visiting researcher in several leading research centers across Europe.
 

1.PERSONAL DATA

NAME : Ioannis Tomkos
CURRENT POSITION(s) :
 

• Associate Dean, Athens Information Technology (AIT)
• Full Professor, AIT
• Research Group Head of the “High Speed Networks and Optical Communications” Research Group, AIT
• Adjunct Faculty, INI, Carnegie Mellon University, Pittsburgh, PA, USA
  

2. INTERNATIONAL RECOGNITION – HONORS - AWARDS

Leadership in International Research Projects

• Elected as Chairman of the EU project COST 291 entitled “Towards Digital Optical Networks”
• Technical Manager and Steering Board member of the EU IST STREP project DICONET
• Steering Board member of the EU STREP project APACHE
• Steering Board member of the EU NoE project EUROFOS
• Steering Board member of the EU STREP project SARDANA
• Leader of two Joint Projects in the framework of BONE EU NoE project
• Steering Board member of the EU IST SSA project BReATH,
• Technical Manager and Steering Board member of the EU IST STREP project TRIUMPH
• Leader of a Joint Project in the framework of e-Photon/ONE2 EU NoE project
  

• Elected as Chairman of the Optical Networking Technical Committee of the IEEE Communications Society.
• Elected as Chairman of the IFIP working group on Photonic Networks
• Distinguished Lecturer of IEEE Communications Society (for the topic of “Transparent Optical Networking”)
• Member of the Technical Activities Council of IEEE
• Member of the IASTED Technical Committee on Telecommunications for the term 2003-2006
• IEEE ComSoc Representative in the IEEE Nanotechnology Counsil
  

• Member of the Editorial Board of the IEEE/OSA Journal of Lightwave Technology, the top scientific publication in the field of optical communications
• Member of the Editorial Board of the IET (Former IEE) Journal of Optoelectronics
• Member of the Editorial Board of the International Journal of Communications
  

• Guest Editor of IEEE Journal of Lightwave Technology, December 2005 Special Issue on “Optical Networks”
• Invited to serve as Guest Editor for a special issue of the International
• Journal “Annals de Telecommunications” on “Simulation techniques for optical networks”
• Invited to serve as Guest Editor for a special issue on “Digital Optical Networks” for the Elsevier “Computer Networks” Journal
  

• General Co-Chair of the International Conference on Transparent Optical Networks-ICTON 2008
• Co-Chair for GridNets 2008
• Publications Chair for ONDM 2008
• Co-Chair of the first symposium on Resilience in Transparent Optical Networks (RTON) 2007
• Co-Chair of the ECOC 2007 workshop Networks for IT: A new opportunity for optical network technologies
• General Co-Chair of the Optical Networks Design and Modeling-ONDM conference (2007)
• General Co-Chair of the Broadnets 2007 conference
• General Chair of the Accessnets 2006 conference
• Symposium Chair for the IEEE Globecom 2005 conference
• Steering Board member for the Broadnets conference
• Steering Board member for the AccessNets conference
• General Chair of the BREATH workshop on “Developing Broadband in Greece and NMS countries” (2006)
• General Co-Chair of the COST/GBOU workshop (2006)
• Member of the organization committee for the strategic IST/COST (EU) - NSF (USA) workshop on future trends and great challenges in optical networking (2005)
• General Chair of the COST workshop on “Challenges in Optical Networking” (2005)
• Co-organizer of the Workshop on “Optical Networking for Grid applications” held in conjunction with ECOC 2004.
• Co-organizer of the Workshop on “Optical Networking perspectives vs. optical technologies reality” in conjunction with ONDM 2007.
• Co-organizer of the Workshop on “High-speed networks and optical communications” held in conjunction with Globecom 2004.
• Co-organization of two workshops in collaboration with the European Photonics Industry Consortium (EPIC), the IST OPTIMIST Project Consortium and COST288 (2003).
  

• Member of the Technical Program Organizing Committee for the European Conference on Optical Communications (ECOC 2003, ECOC 2004, ECOC 2005, ECOC 2006, ECOC 2007, ECOC 2008) (subcommittees “Transmission systems, subsystems and network elements”, “Core and backbone networks”). This conference is the largest in Europe in the field of Optical Communications.
• Member of the Technical Program Organizing Committee for the Optical Fiber Communications Conference (OFC 2003 - OFC 2005) (subcommittee “Networks: Switching, Routing and Access”). This conference is the largest in the world in the field of optical communications and has more than 20.000 participants each year.
• Member of the Technical Program Organizing Committee for the IEEE International Conference on Communications (ICC 2004, ICC 2006, ICC 2007) Conference (subcommittee “Optical Networking”).
• Member of the Technical Program Organizing Committee for the IEEE Globecom 2003, 2006 and 2008 Conferences (subcommittee “Optical networking systems”).
• Member of the Technical Program Organizing Committee for the Photonics in Switching (PS 2007, PS 2008) Conference.
• Member of the Permanent International Advisory Committee for the IEEE/IFIP International Conference on Telecommunications (ICT’04, ICT’05, ICT’06).
• Member of the Technical Program Committee of the Workshop on All Optical Routing WAOR 2004, 2005 and 2006.
• Member of the Technical Program Committee of the Workshop on High Performance Switching and Routing - HPSR'07, HPSR’08.
• Member of the Technical Program Committee of INTERWORKING 2007 conference
• Member of the Technical Program Committee of CHINACOM 2006, 2007 and 2008 Conference.
• Member of the Technical Program Committee of the International Conference WirelessCom 2006.
• Member of the Technical Program Organizing Committee for the IASTED Wireless and Optical Communications (WOC 2004, 2005, 2006) Conference (subcommittee “Optical Networking”).
• Member of the Technical Program Organizing Committee for the IASTED CCN 2004, 2005 and 2006 Conference.
• Member of the Technical Program Organizing Committee for the IASTED CSN 2005 and 2006 Conference.
• Member of the Technical Program Committee of the International conference on “Simulation Tools for Research and Education in Optical Networks”, (STREON 2005).
• Member of the International Advisory Committee of the First International Symposium on Advance Networks and Telecommunications Systems (ANTS 2007).
  

• Winner of the “2001 Corning Research Outstanding Publication Award”.
• Awarded by the Lasers and Electro-Optics Society of the Institute of Electrical and Electronics Engineering (LEOS/IEEE), for the “Best Paper” of 1998 IEEE/LEOS Annual Meeting.
• Awarded by SPIE, the International Society for Optical Engineering, with a scholarship for potential long-range contributions to the field of photonics (1999).
• Awarded by the Lasers and Electro-Optics Society of the Institute of Electrical and Electronics Engineering (LEOS/IEEE) with a travel grant in order to present my work in the IEEE/LEOS ’98 Annual Meeting (1998).
• Awarded by the Greek National Institute of Scholarships for my academic performance (1991, 1992, and 1993).
• Awarded by Corning Inc. for my contributions in the development of a new optical fiber (MetroCor fiber).
  

• Invited speaker in major international conferences (e.g. OFC’02, LEOS’01, ITCOM’02, APOC’02, ICTON’03, PS’03, ICTON’04, ICTON’06, APOC’05, COIN-WOBS’06, OFC 2007, APOC’07, ICTON’07, Broadnets’07).
• Plenary speaker at ICTON 2005
• Invited tutorial instructor in international conferences (e.g. ICT’03).
• Invited author for journal/magazine articles.
• Invited session/panel Chair in International Conferences (e.g. ECOC, OFC, LEOS, APOC)
• Invitations to present tutorial talks & short courses to R&D groups of major companies and to Universities
  

• Invited expert Evaluator for European research projects
• Reviewer for International Journals (IEEE/OSA Journal of Lightwave Technology, IEEE Journal on Selected topics in Communications, IEEE Journal on Selected Areas in Quantum Electronics, IEEE Communications Magazine, Computer Communications Journal and the IEEE Photonics Technology Letters)
• Consultant for ICT companies
  

• Major commercial magazines covering the area of Photonic devices and optical communications systems (e.g. “Fiber Systems”, “Photonics Spectra”, “WDM solutions”) have published interviews in reference to my scientific accomplishments.
• Presentations at OFC’01 and OFC’02 were selected as the highlights of this major conference.
• The tutorial presented at ICT’03 was listed in the IEEE Communications Magazine as one of the highlights of that conference.
• Scientific magazines (e.g. Optical Networks Magazine) have listed some of my publications as scientific highlights.
• Member of the Lasers and Electro-Optics Society of the Institute of Electrical and Electronics Engineering (LEOS/IEEE), and the Communications Society (IEEE/ComSoc).

3. PUBLICATIONS IN INTERNATIONAL ARCHIVAL JOURNALS & MAGAZINES

Published

1. Maria Spyropoulou, Stelios Sygletos and Ioannis Tomkos, “Simulation of Multiwavelength Regeneration Based on QD Semiconductor Optical Amplifiers”, IEEE Photonics Technology Letters, 19 (17-20): 1577-1579 SEP-OCT 2007
2. Zakynthinos, P.; Kanellos, G. T.; Klonidis, D.; Apostolopoulos, D.; Pleros, N.; Poustie, A.; Maxwell, G.; Tomkos, I.; Avramopoulos, H.; “Cascaded Operation of a 2R Burst-Mode Regenerator for Optical Burst Switching Network Transmission”, Photonics Technology Letters, IEEE, Volume 19, Issue 22, Nov.15, Page(s): 1834-1836, 2007
3. Ch. Kouloumentas, A. Tzanakaki, I. Tomkos, N. Pleros, P. Zakynthinos, D. Petrantonakis, D. Apostolopoulos, O. Zouraraki and H. Avramopoulos, “Packet clock recovery using a bismuth oxide fiber-based optical power limiter”, Optics Express, 2007
4. G. Markidis, S. Sygletos, A. Tzanakaki and I. Tomkos, “Impairment Constraint Based routing in Optical Networks Employing 2R Regeneration”, IEEE Photonics Technology Letters, 2007.
5.  I. Tomkos, A. Tzanakaki, P. Kalkani, G. Markidis, C. Mas, “Benefits from the Use of Impairment Constraint Routing in Optical Networks”, International Journal “Annals de Telecommunications”, Special issue on “Simulation techniques for optical networks”, 2006
6. A. Tychopoulos, O. Koufopavlou and I. Tomkos, "Forward error correction in optical communications: A tutorial overview on the evolution of architectures and the future prospects of Outband and Inband FEC for optical communications", IEEE Circuits & Devices Magazine, 2006.
7. A. Tychopoulos, I. Papagiannakis, D. Klonidis, A. Tzanakaki, O. Koufopavlou and I. Tomkos, "Demonstration of a Low-Cost Inband FEC Scheme for STM-64 Transparent Metro Networks" accepted for publication, IEEE Photonics Technology Letters, 2006.
8. Ch. Kouloumentas, A. Tzanakaki, and I. Tomkos, “Fiber based subsystem for all-optical clock recovery at 160Gb/s and beyond, IEEE Photonics Technology Letters, 2007.
9. S. Sygletos, A. Tzanakaki and I. Tomkos, “Cascadeability performance of continuous spectrum WB/WSS at 10/40/160 Gb/s”, IEEE Photonics Technology Letters, 2006.
10. Siamak, A. Tzanakaki, I. Tomkos, “A Simulation of Adaptive Burst assembly Algorithms in Optical Burst Switched Networks with Self-Similar Traffic Sources”, International Journal “Annals de Telecommunications”, Special issue on “Simulation techniques for optical networks”, 2006
11. C. Politi, D. Klonidis, A. Tzanakaki, M. O’Mahony, I. Tomkos, “Waveband routed optical packet switch: implementation and performance evaluation”, SPIE Optical Engineering, May 2006
12. Ch. Kolias and I.Tomkos, “Switch fabrics: Key building blocks for switches and routers”, IEEE Circuits and Devices Magazine, Sep-Oct 2005
13. A. Tzanakaki, I. Zacharopoulos, D. Parcharidou and I. Tomkos, “Nonlinear Penalty Suppression through the Use of OADMs”, IEEE Photonics Technology Letters, December 2005
14. C. Mas, I. Tomkos, O. Tonguz “A failure location algorithm for transparent optical networks”, IEEE Journal on Selected Areas in Communications, August 2005.
15. C. Kolias, A. Makris, N. Nikopoulos, P. Panagiotopoulos, I. Zacharopoulos, G. Yovanof and I. Tomkos, “Comparative Study and Techno-Economic Analysis of Residential Broadband Access Technologies: GPON and FWA”, Journal of Communication Networks, 4: 211-217 Part 3 JUL-SEP 2005
16. I. Tomkos, D. Vogiatzis, C. Mas, I. Zacharopoulos, A. Tzanakaki and E. Varvarigos, “Performance Engineering of Metropolitan Area Optical Networks through Impairment Constraint Routing”, IEEE Communications Magazine, vol. 42, no. 8, pp. S40 - S47, Aug. 2004.
17. I. Tomkos, R. Hesse, M. Sharma and A. Boskovic, “Impact of signal transients on system performance”, IEE Optoelectronics, Volume: 151, Issue: 2, 26 April 2004, Pages: 87 – 92, 2004.
18. I. Zacharopoulos, A. Tzanakaki, D. Parcharidou, and I. Tomkos, “Optimization Study of Advanced Modulation Formats for 10 Gbit/s Metropolitan Networks”, IEEE Journal of Lightwave Technology, December 2004.
19. A. Tzanakaki, I. Zacharopoulos, D. Parcharidou and I. Tomkos, “Advanced Modulation Formats Appropriate for 10 Gbit/s WDM Metropolitan Area Networks”, IEEE Photonics Technology Letters, vol. 16, no. 7, pp. 1769 - 1771, July 2004.
20. A. Tzanakaki, I. Zacharopoulos and I. Tomkos, “Broadband Building Blocks”, IEEE Circuits and Devices Magazine, vol. 20 , no. 2 , pp. 32-37, March-April 2004.
21. T. Politi, A. Tzanakaki, D. Klonidis, M. O’Mahony and I. Tomkos, “Optical Cross-Connect Architecture Using Waveband Conversion and a Passive Wavelength Router”, IEE proceedings, part J, 152 (4): 215-221 AUG 2005.
22. M. Vasilyev, I. Tomkos, J-K Rhee, M. Mehendale, S. Tsuda, B. Szalabofka, B. Hallock, “Ultra-Long-Haul DWDM networks with Broadcast & Select OADMs/OXCs”, IEEE/OSA Journal of Lightwave Technology, November 2003.
23. J.-K. Rhee, I. Tomkos, M.-J. Li, “A Broadcast and Select OADM optical network with channel-by-channel dedicated optical protection”, IEEE/OSA Journal of Lightwave Technology, January 2002.
24.  I. Tomkos, R. Hesse, C. Friedman, N. Antoniades, N. Madamopoulos, B. Hallock, R. Vodhanel, A. Boskovic, “Transport performance of an 80Gb/s WDM ring network utilizing directly modulated lasers and uncompensated negative dispersion fiber”, IEEE/OSA Journal of Lightwave Technology, May 2002.
25. M. Vasilyev, I. Tomkos, J-K Rhee, M. Mehendale, S. Tsuda, B. Szalabofka, B. Hallock, “80x10.7Gb/s Ultra-Long-Haul (4200km) DWDM network with dynamic operation of Broadcast & Select reconfigurable OADMs”, IEEE Photonics Technology Letters, February 2003
26. A. Filios, I. Tomkos, and R. Vodhanel, “Transmission performance over different fiber types of 2.5Gb/s directly modulated signal produced by a 1.55-µm tunable VCSEL”, in IEEE Photonics Technology Letters, 2003.
27. R. Gutierez, A. Filios, I. Tomkos, A. Kruse, T. Kennedy, and R. Vodhanel, “Impact of fiber nonlinearities in transmission over negative dispersion fibers when using chirped transmitters”, Optics Communications, 2002.
28. I. Tomkos, “Metropolitan area optical networks: Needs and requirements”, Invited paper, IEEE Circuits and Devices Magazine, July 2003.
29. I. Tomkos, J.-K. Rhee, P. Iydrose, R. Hesse, R. Vodhanel, A. Boskovic, “Filter concatenation penalties for 10Gb/s sources suitable for WDM metropolitan area etworks”, IEEE Photonics Technology Letters, Vol. 14, No. 4, pp. 564-566, Apr. 2002.
30.  I. Tomkos, R. Hesse, R. Vodhanel, A. Boskovic, “A 320Gb/s metropolitan area ring network utilising 10Gb/s directly modulated lasers”, IEEE Photonics Technology Letters, Vol. 14, No. 3, pp. 408–410, March 2002.
31. I. Tomkos, J. Conradi, D. Chowdhury, D. Culverhouse, C. Giroux, K. Ennser, B. Hallock, T.Kennedy, A. Kruse, I. Roudas, M. Sharma, A. Boskovic, R. S. Vodhanel, “Demonstration of Negative Dispersion Fibers for DWDM Metropolitan area networks”, Special Issue on specialty fibers, IEEE/LEOS Journal on Selected topics in Quantum Electronics, May/June 2001. Winner of the 2001 Corning Research Outstanding Publication Award.
32. I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic and R. Vodhanel, “10-Gb/s transmission of 1.55-µm directly modulated signal over 100 km of negative dispersion fiber”, IEEE Photonics Tech. Lett, vol. 13, No. 7, pp. 735 –737 July 2001.
33. I. Tomkos, R. Hesse, N. Antoniades and A. Boskovic, “Impact of filter concatenation effects on the performance of metropolitan area optical networks utilizing directly modulated lasers”, IEEE Photonics Technology Lett, vol. 13, No. 9, September, 2001.
34. I. Tomkos, I. Roudas, A. Boskovic, R. Hesse, N. Antoniades and R. Vodhanel, “Measurements of laser rate equations parameters for representative simulations of 2.5Gb/s Metro area IM/DD transmission systems and networks”, Optics Communications, Vol. 194, Issue 1-3, pp. 109-129, July 2001.
35. J. Downie, I. Tomkos, N. Antoniades, A. Boskovic, I. Roudas, “Impact of filter concatenation effects in metropolitan area systems utilizing directly modulated lasers”, IEEE/LEOS Journal of Lightwave Technology, February 2002.
36. N. Antoniades, A. Boskovic, I. Tomkos, N. Madamopoulos, J.K. Rhee, J. Downie, I. Roudas, M. Yadlowsky, “Performance of DWDM Metro area interconnected rings network architecture” , IEEE Journal on Selected Areas in Communications, Special Issue on WDM Based Network Architectures, Vol. 20, No. 1, pp. 149-165, Jan. 2002
37.  N. Madamopoulos, C. Friedman, I. Tomkos, N. Antoniades, A. Boskovic, “Performance evaluation of a transparent reconfigurable metropolitan network under static and dynamic traffic”, IEEE/OSA Journal of Lightwave Technology, 2002.
38.  I. Tomkos, N. Andoniades, D. Syvridis, “Modular and Re-configurable Parametric Wavelength Interchanging Cross-Connect Architectures”, Photonics Network Communications Journal, Special issue on WDM Transport Networks, vol.2 no.1, pp. 53-59, 2000.
39. I.Tomkos, I. Zacharopoulos, E. Roditi, D.Syvridis, A. Uscov, “On the polarization sensitivity and performance optimization of a dual pump four wave mixing based wavelength converter”, Optical and Quantum Electronics, vol. 32, pp. 97-113, 2000.
40. I. Tomkos, R. Calvani, I. Zacharopoulos, D.Syvridis, F. Cisternino, E. Riccardi, “All Optical Demultiplexing of 4x10Gb/s Using Dual Pump Wave Mixing in Semiconductor Optical Amplifier”, IEEE Photonics Technology letters, vol. 11, no. 11, pp. 1464-1466, 1999.
41. I.Tomkos, I. Zacharopoulos, E. Roditi, D.Syvridis, A. Uscov,“ Mechanisms of wave mixing and polarisation sensitivity of the wavelength conversion in semiconductor optical amplifiers using two parallel polarised pumps”, Optics Communications (163)1-3 pp. 49-54, 1999
42. I.Tomkos, I. Zacharopoulos, E. Roditi, D.Syvridis, “Experimental investigation of four wave mixing in a 3-electrode distributed feedback laser”, AIP Applied Physics letters, vol. 75, no. 9, pp. 1195-1197, 1999
43. I.Zacharopoulos, I. Tomkos, D.Syvridis, F. Girardin, L. Occhi, G. Guekos, “Influence of phase mismatch on a spectral inverter based on four wave mixing in dispersion shifted fiber at 10Gb/s”, IEEE Photonics Technology Letters, vol.11, no.4, p.p.430-432, 1999.
44. I.Tomkos, I. Zacharopoulos, D.Syvridis, T. Sphicopoulos, C. Caroubalos, E. Roditi, “Performance of a re-configurable wavelength converter based on dual pump wave mixing in a semiconductor optical amplifier”, IEEE Photonics Technology Letters, vol. 10, no. 10, 1998.
45. I.Tomkos, I. Zacharopoulos, D.Syvridis, T. Sphicopoulos, C. Caroubalos, E. Roditi, “Improved performance of a wavelength converter based on dual pump four wave mixing technique”, AIP Applied Physics Letters, vol.72, no. 20, 1998.
46. I.Zacharopoulos, I. Tomkos, D. Syvridis, T. Sphicopoulos, C. Caroubalos, E. Roditi, “Study of polarisation insensitive wave mixing in bulk semiconductor optical amplifiers”, IEEE Photonics Technology Letters, vol. 10, no. 3, pp. 352-354, 1998.
    

47. Modiano E, Tomkos I, Xie SZ, Yoo SJB, Zah CE, “Optical Networks”, Guest Editorial, IEEE Journal of Lightwave Technology, October 2005
48. De La Tocnaye JLD, Tomkos I., Joindot M, “Modeling and simulation in optical networks design”, Guest Editorial, ANNALES DES TELECOMMUNICATIONS - ANNALS OF TELECOMMUNICATIONS 62 (5-6): 515-517 MAY-JUN 2007

49. I. Tomkos, Stelios Sygletos and Juerg Leuthold, “Optically transparent core mesh networks”, (Invited paper), Special issue of Journal of Optical Networking, 2007
50. K. Vlachos, C. Raffaelli, S. Aleksic, N. Andriolli, D. Apostolopoulos, Hercules Avramopoulos, Didier Erasme, Dimitrios Klonidis, M. Nordal Petersen, M. Scaffardi , K. Schulze, M. Spyropoulou, S. Sygletos, I. Tomkos, C. Vazquez, O. Zouraraki and F. Neri, “Photonics in Switching: Architectures, Technologies and Systems”, submitted, Computer Networks.
51. Papagiannakis, I.; Xia, C.; Klonidis, D.; Rosenkranz, W.; Birbas, A. N.; Tomkos, I. "Electronic distortion equalization for transient and adiabatic chirped directly modulated lasers at 2.5 and 10 Gb/s", submitted, Journal of IET Optoelectronics.
52. G. Markidis, A. Tzanakaki and I. Tomkos, “CoS assignment based on physical performance parameters in OBS networks”, submitted, Journal of IET Optoelectronics.
53. Siamak Azodolmolky and Ioannis Tomkos, “A Techno-Economic Model for FTTH Deployments”, submitted, Journal of Telecommunications Management
54. Ch. Kouloumentas, L. Provost, F. Parmigiani, S. Tsolakidis, P. Petropoulos, I. Tomkos, D. J. Richardson, “Experimental Investigation of a Dispersion-Managed Multi-Channel 2R Optical Regenerator,” submitted to IEEE PHOTONICS TECHNOLOGY LETTERS
55. Marco Ruffini, Siamak Azodolmolky, Dimitris Klonidis, Donal O’Mahony, Ioannis Tomkos, “OPTIPFLOW: A Converged Optical and IP Flow Switched Approach for Multi-Domain Optical Networks”, submitted
56. Maria Spyropoulou, Konstantinos Yiannopoulos, Stelios Sygletos, Kyriakos Vlachos and Ioannis Tomkos, “160 Gbps operation of a Quantum Dot Semiconductor Optical Amplifier based Optical Buffer”, to be submitted, Journal of Optical Networking
57. Ch. Kouloumentas and I. Tomkos, “Fiber-based in-line regeneration scheme for multichannel operation”, to be submitted, Optics Communications
58. Papagiannakis, I.; Klonidis, D.; Tomkos, I.; et.al. "Electronic compensation of optical impairments: the activities of ePhoton/One+ EU project", to be submitted
59. Siamak Azodolmolky; Klonidis, D.; Tomkos, I.; et.al. "Dynamic impairment constraint optical networking: the activities of DICONET EU project", to be submitted
    

4. BOOK CHAPTERS

60. I. Tomkos, “WDM metropolitan area optical networks”, Book Chapter, in «Wiley Encyclopedia of Telecommunications», Wiley and Sons, New York, (Editor: John Proakis), 2003
61. D. Vogiatzis, C. Mas and I. Tomkos “Impairment Constrained Based Routing for Managed Reach WDM Optical Networks”, Lecture Notes in Computer Science, 2004.
62. C. Mas and I. Tomkos, “Optimal Monitoring Equipment Placement for Fault and Attack Location in Transparent Optical Networks”, Lecture Notes in Computer Science, 2004.
63. G. Markidis, S. Sygletos, A. Tzanakaki and I. Tomkos, “Impairment Aware based Routing and Wavelength Assignment in Transparent Long Haul Networks”, Lecture Notes in Computer Science (LNCS), Springer 2007
64. Maria Spyropoulou, Konstantinos Yiannopoulos, Stelios Sygletos, Kyriakos Vlachos and Ioannis Tomkos, “160 Gbps Simulation of a Quantum Dot Semiconductor Optical Amplifier based Optical Buffer”, Lecture Notes in Computer Science (LNCS), pp. 107-116, Springer 2007
65. A. Kuchar, I. Tomkos, C. Mas and A. Tzanakaki, Chapter 8 in “Advanced Infrastructure for Photonic Networks”, Published in 2003.
66. I. Tomkos et.al., Chapter 2 entitled “Transmission Systems” in “Advanced Infrastructure for Photonic Networks”, Published in 2003.
    
    

5. BOOKS

6. NON-PEER REVIEWED PUBLICATIONS (Magazines)

1. A. Woodfin, I. Tomkos, A. Filios, “Versatility of negative dispersion fiber in metropolitan networks”, Lightwave Magazine, January 2002.
2. A. Sevian, Ch. Kennedy, I. Tomkos and D. Culverhouse, “The Application of DM Lasers and its Performance at 1310 nm”, Public Network Europe, vol. 11, No.3, March 2001.
3. C. Kolias and I. Tomkos, “Techno-Economic Analysis of Residential Broadband Access”, Total Telecom magazine, 2005
4. I. Tomkos, “Techno-economic value analysis mathodology”, Infocom Magazine, 2007 (in Greek)
5. I. Tomkos, “Broadband over Power-Lines”, Infocom Magazine, 2007 (in Greek)
6. I. Tomkos, “Optical networks”, Communications Solutions Magazine, 2007 (in Greek)
7. I. Tomkos, “Technology, policy/regulation, and business aspects of the ICT industry”, Technology Column, Business Partners Magazine, 2006.
8. I. Tomkos, “Why Broadband is lagging behind?”, Technology Column, Business Partners Magazine, 2006.
9. I. Tomkos, “Status of Broadband Telecom Policy and Regulation in Greece”, Technology Column, Business Partners Magazine, 2006.
10. I. Tomkos, “Public Private Partnerships in the ICT sector”, Technology Column, Business Partners Magazine, 2007.
11. I. Tomkos, “Trends in evolution of broadband services”, Technology Column, Business Partners Magazine, 2007.
12. I. Tomkos, “Techno-economic value analysis studies for broadband access networks and services”, Technical Choice Magazine, 2006 (in Greek)
13.  I. Tomkos and A. Tzanakaki, “Q-factor based Constraint Routing in Optical Networks”, SPIE Newsletter, 2006
14. A. Tzanakaki, I. Tomkos, D. Simeonidou, “Technical Report on ECOC 2004 Workshop on Optical Networking for Grid Services”, appeared in the March 2005 issue of the Global Communications Newsletter (GCN) published in the IEEE Communications Magazine
15. I. Tomkos, “Techno-economic value analysis studies for broadband access networks”, NetWeek Magazine, 2005 (in Greek).
16. I. Tomkos, “Broadband Optical Networks”, NetWeek Magazine, 2005 (in Greek).
17. I. Tomkos, “Optical networks: State of the art”, Technical Choice Magazine, 2005 (in Greek)
    

7. PUBLICATIONS IN PEER-REVIEWED INTERNATIONAL CONFERENCE PROCEEDINGS

1. Ioannis Tomkos, "Cross-layer optimized optical grids", (Invited paper), Broadnets 2007, USA.
2. Ioannis Tomkos, "Impairment constraint networking algorithms and their integration with GMPLS to support Grid computing applications", (Invited paper), APOC 2007, Wuhan, China.
3. Ioannis Tomkos, “Dynamically reconfigurable transparent optical networking based on cross-layer optimization”, (Invited paper), ICTON 2007
4. L. Provost, Ch. Kouloumentas, F. Parmigiani, S. Tsolakidis, I. Tomkos, P. Petropoulos, D. J. Richardson, “Experimental Investigation of a Dispersion-Managed Multi-Channel 2R Optical Regenerator,” Conference on Optical Fiber Communications (OFC), San Jose USA, Feb. 2008
5. J. Lazaro, J. Prat, I. Tomkos, et.al., (Invited paper), Conference on Optical Fiber Communications (OFC), San Jose USA, Feb. 200
6. Ioannis Tomkos, S. Sygletos, A. Tzanakaki and G. Markidis, “Impairment constraint routing in mesh optical networks”, (Invited paper), OFC 2007, Anaheim, USA.
7. Maria Spyropoulou, Stelios Sygletos and Ioannis Tomkos, “Study of a Multi-Wavelength Regenerative Subsystem based on Quantum-Dot Semiconductor Optical Amplifiers at 40Gbps”, in proc. Optical Fiber Communications Conference OFC 2007, JWA37.
8. Maria Spyropoulou, Stelios Sygletos and Ioannis Tomkos, “Investigation of Multi-Wavelength Regeneration employing Quantum Dot Semiconductor Optical Amplifiers beyond 40Gb/s”, International Conference on Transparent Networks ICTON 2007, Tu.A1.7
9. S. Sygletos, M. Spyropoulou, P. Vorreau, R. Bonk, I. Tomkos, W. Freude and J. Leuthold, “Multi-Wavelength Regenerative Amplification Based on Quantum-Dot Semiconductor Optical Amplifiers”, International Conference on Transparent Networks ICTON 2007, We.D2.5 (Invited paper).
10. Ch. Kouloumentas and I. Tomkos, “Fiber-based in-line regeneration scheme for multichannel operation at 40 Gb/s,” in Proc. CLEO Europe 2007, CI-14-TUE, Munich Germany 17-22 Jun 2007.
11. Ch. Kouloumentas, N. Pleros, P. Zakynthinos, D. Petrantonakis, D. Apostolopoulos, O. Zouraraki, A. Tzanakaki, H. Avramopoulos, I. Tomkos, “Packet clock recovery at 40 Gb/s and beyond, using a Fabry-Perot filter and an optical power limiter based on a bismuth oxide fiber,” in Proc. CLEO Europe 2007, CI7-4-THU, Munich Germany 17-22 Jun 2007.
12. I. Tomkos, Ch. Kouloumentas, S. Tsolakidis, “Performance Studies of Multi-Wavelength All-Optical 2R Regeneration Subsystems Based on Highly Non-Linear Fibers,” in Proc. ICTON 2007, (Invited paper), Tu.C1.1, Rome Italy, 1-5 Jul 2007.
13. G. Giuliani, S. Donati, J.M. Rorison, J. Pozo, A. Villafranca, I. Garces, J. Lasobras, M. Chacinski, R. Schatz, Ch. Kouloumentas, I. Tomkos et al, “Round-Robin measurements of linewidth enhancement factor of semiconductor lasers in COST 288 action,” in Proc. CLEO Europe 2007, CB9-2-WED, Munich Germany 17-22 Jun 2007.
14. A. Villafranca, J. Lasobras, J. I. Garcés, G. Guiliani, S. Donati, M. Chacinski, R. Schatz, Ch. Kouloumentas, I. Tomkos, et al. “Linewidth enhancement factor of semiconductor lasers: results from round-robin measurements in COST288,” CLEO'07 - Conference on Lasers and Electro-Optics, Baltimore (USA). May 2007.
15.  G. Giuliani, N. Gibbons, S. Donati,, A. Villafranca, J. Lasobras, J. I. Garcés, M. Chacinski, R. Schatz, Ch. Kouloumentas, D. Klonidis, I. Tomkos et al., “Misura del fattore di allargamento di riga di laser a semiconduttore: attività round– robin nell’ambito dell’azione “COST 288,” Fotonica 2007, Mantova (Italy), May. 2007.
16. Papagiannakis, C. Xia, D. Klonidis, W. Rosenkranz, A. N. Birbas and I. Tomkos, “Performance of 2.5 Gb/s and 10 Gb/s transient and adiabatic chirped directly modulated lasers using electronic dispersion compensation”, in proc. 32nd European Conf. on Optical Comm., Paper 9.3.5, Berlin, Germany, Sep. 2007.
17. “Round-Robin Measurements of the Linewidth Enhancement Factor of Semiconductor Lasers in COST 288 Action”, A. VILLAFRANCA, J. LASOBRAS, I. GARCÉS, G. GIULIANI, S. DONATI, M. CHACINSKI, R. SCHATZ, C. KOULOUMENTAS, D. KLONIDIS, I. TOMKOS et.al.,
18. Papagiannakis, C. Xia, D. Klonidis, W. Rosenkranz, A. N. Birbas and I. Tomkos, “Study of the Electronic Dispersion Compensation for 2.5 and 10 Gb/s Transient and Adiabatic Chirped Directly Modulated Lasers”, in proc. IEEE International Conf. on Transparent Optical Networks ICTON, vol.4, pp.59-62, Rome, Italy, July 2007.
19. G.T. Kanellos, D. Klonidis, N. Pleros, P. Zakynthinos, D. Apostolopoulos, A. Poustie, G. Maxwell, I. Tomkos and H. Avramopoulos, “Cascaded operation of a 2R burst-mode regenerator with data exhibiting 6 dB power variation”, in proc. Optical Fibre Communications Conference, paper OWP4, Anaheim CA, USA, March 2007.
20. G. Markidis, S. Sygletos, A. Tzanakaki and I. Tomkos, “Impairment Constraint Based routing in Optical Networks”, Broadband Europe Conference 2006.
21.  G. Markidis, S. Sygletos, A. Tzanakaki and I. Tomkos, “Impairment Constraint Based routing in Optical Networks Employing 2R Regeneration”, ECOC 2006, Cannes, France, September 2006
22. Georgios Zervas, Reza Nejabati, Dimitra Simeonidou, Anna Tzanakaki, Siamak Azodolmolky and Ioannis Tomkos, “A Hybrid Optical Burst/Circuit Switched Ingress Edge Router for Grid-enabled Optical Networks”, GridNets 2006
23. I. Tomkos, “Techno-Economic Analysis of Broadband Access Technologies”, 1st AccessNets Conference, Athens, Greece, 2006
24. Ch. Kouloumentas, A. Tzanakaki, and I. Tomkos, “All-optical multicasting subsystem with regenerative capabilities”, CSNDSP’06, Greece, 2006
25. S. Azodolmolky, A. Tzanakaki, and I. Tomkos, “On the impact of burst assembly on self similarity at the edge router in optical burst switched networks”, CSNDSP’06, Greece, 2006
26. D. Vogiatzis, S. Vassilaras, G. Yovanof and I. Tomkos, “The Emerging NGN Platform for Mobile Services & Automobile Telematics”, 45th FITCE Congress, Athens, Greece, 2006
27. I. Tsirilakis, G. Papanastasiou, I. Tomkos, “Comparative Study and Techno-Economic Analysis of Broadband Access Technologies: GEPON and GESON”, 45th FITCE Congress, Athens, Greece, 2006
28. I. Tomkos, A. Tzanakaki, J. Leuthold, A. D. Ellis, D. Bimberg, P. Petropoulos, D. Simeonidou, S. Tsadka, P. Monteiro “Transparent ring interconnection using multiwavelength photonic switches”, (Invited paper), ICTON 2006.
29. S. Azodolmolky, A. Tzanakaki and I. Tomkos, “Study of the impact of burst assembly algorithms in optical burst switched networks with self-similar input traffic”, (Invited paper), ICTON 2006.
30. G. Markidis, S. Sygletos, A. Tzanakaki and I. Tomkos, “Impairment Constraint Based routing in Ultra Long Haul Optical Networks Employing 2R Regeneration”, 8th International Conference on Transparent Optical Networks (ICTON 2006) conference, June 18-22, 2006, Nottingham, United Kingdom.
31. S. Sygletos, A. Tzanakaki and I. Tomkos, “Cascadeability performance of continuous spectrum WB/WSS at 10/40/160 Gb/s”, 8th International Conference on Transparent Optical Networks (ICTON 2006) conference, June 18-22, 2006, Nottingham, United Kingdom.
32. G. Markidis, A. Tzanakaki and I. Tomkos, “CoS assignment based on physical performance parameters in OBS networks”, 8th International Conference on Transparent Optical Networks (ICTON 2006) conference, June 18-22, 2006, Nottingham, United Kingdom.
33. C. Kouloumentas, A. Tzanakaki and I. Tomkos "All-Optical Clock Recovery at 160 Gbit/s and Beyond, based on a Fabry-Perot Filter and Self-Phase Modulation Effect", , 8th International Conference on Transparent Optical Networks (ICTON 2006) conference, June 18-22, 2006, Nottingham, United Kingdom.
34.  A. Tychopoulos, I. Papagiannakis, D. Klonidis, A. Tzanakaki, O. Koufopavlou and I. Tomkos, "Demonstration of a Low-Cost Inband FEC Scheme for STM-64 Transparent Metro Networks" 8th International Conference on Transparent Optical Networks (ICTON 2006) conference, Nottingham, United Kingdom, June 18-22, 2006 (Invited paper).
35. Ch. Kouloumentas, A. Barlas, A. Tzanakaki, and I. Tomkos, “Performance Evaluation of 2R regenerator based on SPM in HNL fibers”, Workshop on “Design of next generation optical networks”, Belgium, 2006
36.  S. Zsigmond, A. Szodenyi, B. Megyer, T. Cinkler, A. Tzanakaki and I. Tomkos, “Physical layer impairments in multilayer routing”, Workshop on “Design of next generation optical networks”, Belgium, 2006
37. A. Teixeira, P. Andre, S. Stevan, T. Silveira, A. Tzanakaki and I. Tomkos, “Raman amplification based on multiple low-power lasers”, AICT conference, 2006
38.  P. Kalkani, A. Tzanakaki, C. Mas, I. Zacharopoulos and I. Tomkos, “Benefits of Q-factor based routing in optical networks”, ECOC 2005.
39. I. Tomkos, A. Tzanakaki “Towards Digital Optical Networks”, (Invited paper), ICTON 2005
40. I.Tomkos, “Distance learning education: The AIT experience”, Kazakhstan, Oct 2005
41. C. Kolias, A. Makris, N. Nikopoulos, P. Panagiotopoulos, I. Zacharopoulos, G. Yovanof and I. Tomkos, “Comparative Study and Techno-Economic Analysis of Residential Broadband Access Technologies: GPON and FWA”, 44th FITCE Congress 2005, Vienna, Austria, 2005
42. A. Tzanakaki, and I. Tomkos, “Optical Switching Technologies and Routing Architectures for Telecommunications, Data and Grid Services”, The Rank Prize Funds, Symposium on Optical Data Networking, (Invited Paper), UK, August 2005
43. S. Azodolmolky, A. Tzanakaki, and I. Tomkos, “Optical Burst Switched Networks for Telecommunications and Grid Applications”, The Rank Prize Funds, Symposium on Optical Data Networking, UK, August 2005
44. S. Azodolmolky, A. Tzanakaki, and I. Tomkos, “On the Simulation of Optical Burst Switched Networks with Self-Similar Traffic Sources”, Eurocon 2005, November 2005, Serbia
45. I. Tomkos, “Impairment constraint routing in transparent and managed reach optical networks”, (Invited paper), APOC 2005.
46. I. Karamitsos, A. Tzanakaki, I. Tomkos, “Impairment constraint routing in OBS networks”, ICTON 2005
47. A. Tzanakaki, I. Zacharopoulos, D. Parcharidou, and I. Tomkos, “Nonlinearities suppression in WDM networks utilizing OADMs”, TEMU 2005
48. A. Challita, A. Tzanakaki, I. Tomkos, Reliability aware routing in optical networks, ICTON 2005
49.  I. Tsirilakis, C. Mas and I. Tomkos, “Cost comparison of IP/WDM vs. IP/OTN for European Backbone networks, ICTON 2005
50. A. Tzanakaki, I. Zacharopoulos, D. Parcharidou, and I. Tomkos, “Nonlinear Penalty Suppression through the Use of Optical Add Drop Multiplexers”, ICTON 2005
51. A. Challita, A. Tzanakaki, I. Tomkos, “Reliability based routing in WDM optical networks”, APOC 2005
52. C. Mas and I. Tomkos, “Comparison of transparent versus opaque interconnecting nodes of OADM rings with respect to failure location”, ICTON 2005
53. D. Vogiatzis, C. Mas and I. Tomkos, "Impairment Constraint Routing in Metro Optical Networks" European Conference on Optical Communications (ECOC) 2004, Sweden, September 2004.
54. O. Gurel, C. Mas and I. Tomkos, "Requirements for a transparent Pan-European network" International Conference on Transparent Optical Networks (ICTON) 2004, Wroclaw, Poland, July 2004.
55. C. Mas, D. Vogiatzis and I. Tomkos "Impairment aware routing in transparent metropolitan area optical networks" (Invited paper) International Conference on Transparent Optical Networks (ICTON'04), Wroclaw, Poland, July 2004
56. E. Van Breusegem, M. De Leenheer, P. Demeester, D. Simeonidou, M. J. O’ Mahony, R. Nejabati, A. Tzanakaki, I. Tomkos, “An OBS architecture for pervasive Grid computing”, WOBS, Broadnets 2004
57. C. Politi, D. Klonidis, A. Tzanakaki, M. O’Mahony, I. Tomkos, “Demonstration of a Novel Wavelength Routed Optical Packet Switch Architecture”, Th1.6.4, ECOC2004, September 2004
58. C. Politi, D. Klonidis, A. Tzanakaki, M. O’Mahony, I. Tomkos, “A novel Optical Packet Switch Architecture”, OECC2004
59. D. Simeonidou, R. Nejabati, M. J. O’Mahony, A. Tzanakaki and I. Tomkos, “Optical Network Infrastructures for Grid Applications”, Terena networking conference 2004, June 2004.
60. A. Tzanakaki, I. Zacharopoulos, D. Parcharidou, and I. Tomkos, “Performance Optimization using Advanced Modulation Formats in WDM Metropolitan Area Networks”, (Invited Paper), ICTON 2004, Poland, June 2004
61. C. Mas, I. Tomkos, “Failure management in optical networks”, Invited talk, IEEE ICTON’03, July 2003.
62. I. Tomkos, A. Tzanakaki, I. Zacharopoulos, “Wavelength selective OADMs and OXCs for all-optical networks”, Invited talk, IEEE ICTON’03, July 2003.
63. C. Mas, I. Tomkos and O. Tonguz, “A framework for failure prevention and management in all-optical networks”, ITCOM’03, September 2003, Orlando, USA.
64. A. Tzanakaki, I. Zacharopoulos and I. Tomkos, “Near and longer term architectural designs for OXCs/OADMs/Network topologies”, Invited Paper, Photonics in Switching 2003, October 2003.
65. C. T. Politi, A. Tzanakaki, D. Klonidis, M. J. O’Mahony and I. Tomkos, “Novel Wavelength Routed Optical CrossConnect Architecture”, Photonics in Switching 2003, October 2003.
66. I. Zacharopoulos, A. Tzanakaki, D. Parcharidou and I. Tomkos, “Improved Filter Concatenation Tolerance Using Duobinary Modulation Format for Metropolitan Area Networks”, IEEE LEOS Annual meeting 2003, Arizona, October 2003.
67. C. T. Politi, D. Klonidis, A. Tzanakaki, M. J. O’Mahony and I. Tomkos, “Novel Wavelength/Waveband Cross Connect Architecture based on Optical Wavelength Converters and a Passive Wavelength Router”, IEEE LEOS Annual mtg, 2003, October 2003
68. D. Vogiatzis, G. Alexandris, O. Gurel, F. Nikakis, C. Mas and I. Tomkos, “Performance quantification of protection schemes for a Pan-European Optical network”, IEEE LEOS Annual meeting, 2003.
69. C. Mas and I. Tomkos, “Optimal Monitoring Equipment Placement for Fault and Attack Location in Transparent Optical Networks” IFIP Networking 2004.
70. D. Vogiatzis, C. Mas and I. Tomkos “Impairment Constrained Based Routing for Managed Reach WDM Optical Networks”, IFIP Networking 2004.
71. I. Tomkos, M. Vasilyev, J-K Rhee, M. Mehendale, S. Tsuda, B. Szalabofka, B. Hallock, “Ultra-Long-Haul network experiments with 13 concatenated Broadcast & Select OXCs”, presented in the postdeadline paper session of ECOC’02, 2002
72. I. Tomkos, M. Vasilyev, J-K Rhee, and M. Sharma, “Novel dispersion map designs for Ultra-Long-Haul DWDM networking”, presented in the postdeadline paper session of OECC’2002.
73. I. Tomkos, M. Vasilyev, J-K Rhee, M. Mehendale, S. Tsuda, B. Szalabofka, B. Hallock, “80x10.7Gb/s Ultra-Long-Haul (4200km) DWDM network with dynamic operation of Broadcast & Select reconfigurable OADMs”, presented in the postdeadline paper session of OFC’02, 2002
74. I. Tomkos, M. Vasilyev, J.-K. Rhee, “Ultra-Long-Haul DWDM networking with Broadcast & Select reconfigurable OADMs”, Invited Talk, APOC’02, October 14-18, China, 2002
75. I. Tomkos, “Transport performance of WDM metropolitan area transparent optical networks”, Invited talk, OFC’02, 2002.
76. J.-K. Rhee, I. Tomkos, M. Vasilyev, “Ultra-Long-Haul DWDM network studies with cost-effective reconfigurable OADMs”, Invited Talk, ITCOM’02, 29 July - 2 August 2002, Boston, Massachusetts, USA, 2002
77. G.G. Luther, J.-K. Rhee, I. Tomkos, M. Vasilyev, “Fiber for advanced long-haul terrestrial networks”, Invited Talk, ITCOM’02, 29 July - 2 August 2002, Boston, Massachusetts, USA, 2002
78. I. Tomkos, R. Hesse, M. Sharma, “Impact of receiver performance on Bit error rate during signal transients”, accepted for presentation at OAA’02, 2002.
79. I. Tomkos, D. Lelic, R. Hesse, M. Sharma, J-K Rhee, N. Madamopoulos G. Kellogg, “Impact from the use of erbium doped fiber amplifiers with transient gain control on the performance of optical networks”, accepted for presentation at NFOEC’02, 2002.
80. I. Tomkos, “Metropolitan area transparent optical networks”, Invited talk, IEEE LEOS’01 Annual Meeting, 2001.
81. I. Tomkos, R. Hesse, C. Friedman, N. Antoniades, N. Madamopoulos, B. Hallock, R. Vodhanel, A. Boskovic, “Transport performance of a transparent WDM regional area ring network utilizing optimized components/fiber”, presented in the postdeadline paper session of OFC’01, PD-35
82. I. Tomkos, J.-K. Rhee, P. Iydrose, R. Hesse, R. Vodhanel, A. Boskovic, “Filter concatenation penalties for 10Gb/s sources suitable for short-reach cost-effective WDM metropolitan area networks”, presented at ECOC’01.
83. I. Tomkos, R. Hesse, R. Vodhanel, A. Boskovic, “A 320Gb/s metropolitan area ring network utilizing 10Gb/s directly modulated lasers”, presented at ECOC’01.
84.  I. Tomkos, I. Roudas, A. Boskovic, R. Hesse, N. Antoniades and R. Vodhanel, “Measurements of laser rate equations parameters for representative simulations of 2.5Gb/s Metro area IM/DD transmission systems and networks”, Proceedings of LEOS’00 Annual Meeting, 13-16 November, Puerto Rico, U.S.A.
85. I. Tomkos, B. Hallock, I. Roudas, R. Hesse, A. Boskovic and R. Vodhanel, “Transmission of 1.55µm 10Gb/s directly modulated signal over 100km of negative dispersion fiber without any dispersion compensation”, presented at OFC’01.
86. I. Tomkos, R. Hesse, N. Antoniades and A. Boskovic, “Impact of filter concatenation effects on the performance of metropolitan area optical networks utilizing directly modulated lasers”, presented at OFC’01.
87. R. Gutierez, A. Filios, A. Kruse, T. Kennedy, I. Tomkos, and R. Vodhanel, “Impact of fiber nonlinearities in transmission over negative dispersion fibers for extended reach in DWDM metropolitan optical networks”, NFOEC’02, 2002.
88. A. Filios, I. Tomkos, and R. Vodhanel, “The transmission performance of 2.5Gb/s directly modulated 1.55-µm VCSEL”, NFOEC’02, 2002.
89.  J.-K. Rhee, M.-J. Li, P. Iydroose, M. Zhao, B. Hallock, I. Tomkos, and M. Ajgaonkar, “A Novel 240-Gbps Channel-By-Channel Dedicated Optical Protection Ring Network Using Wavelength Selective Switches”, postdeadline paper session of OFC’01, PD-38
90. C.-C. Wang, I. Roudas, I. Tomkos, M. Sharma, and R. S. Vodhanel, “Negative Dispersion Fibers for Uncompensated Metropolitan Networks”, ECOC’00, Munich, Germany, September 2000.
91. M. Sharma, I. Roudas, I. Tomkos, C.-C. Wang, B. Hallock, R. S. Vodhanel, S. Kumar, C. Giroux, D. Chowdhury and Jan Conradi, “Enhancing the performance of directly modulated laser systems using negative dispersion fiber for metro applications”, NFOEC’00, Denver, USA, August 2000.
92. N. Antoniades, A. Boskovic, J.K. Rhee, J. Downie, D. Pastel, I. Tomkos, I. Roudas, N. Madamopoulos, M. Yadlowsky, “Engineering the performance of DWDM Metro networks”, NFOEC’00, Denver, USA, August 2000.
93. I. Roudas, M.N. Lascar, A.E. Kruse, B. Hallock, D. Chowdhury, R. S. Vodhanel, N. Antoniades, I. Tomkos, and M. Sharma, “10Gb/s uncompensated transmission in transparent optical metropolitan area networks using electroabsorption modulators over negative dispersion NZDSF”, presented at CLEO’01.
94. A. Filios, I. Tomkos, B. Hallock, T. Kennedy, I. Roudas, A. Kruse, R. Hesse and R. Vodhanel, “Negative dispersion fibers for extended transmission distances in DWDM metropolitan optical networks”, All-Optical Networks Conference, May 2001.
95. Ch. Kennedy, A. Kruse, I. Tomkos, and I. Roudas, A. Sevian, P. Dupriez, D. Culverhouse, “The Performance of Negative Dispersion Fiber at 10 Gbps and the Significance of Externally and Directly Modulated Lasers”, in Proc. of the National Fiber Optic Engineers Conference 2001 (NFOEC’01), session B4, July 11, 2001
96. N. Madamopoulos, C. Friedman, I. Tomkos, N. Antoniades, A. Boskovic, “Performance evaluation of a transparent reconfigurable metropolitan network under static and dynamic traffic”, presented at LEOS’01.
97. A. Filios, T. Kennedy, I. Tomkos, I. Roudas, R. Gutierez and R. Vodhanel, “16x10Gb/s uncompensated transmission of directly modulated signals over 100km of negative dispersion fiber”, presented at LEOS’01.
98. J.-K. Rhee, I. Tomkos, P. Iydroose, M.-J. Li, “Optical Transient Effect of Dedicated Optical Channel Protection in a Two Fiber Ring Network”, presented at LEOS’01.
99. I.Zacharopoulos, I. Tomkos, D.Syvridis, “Comparison of midspan and multipoint spectral inversion in high bit-rate optical links” Photonics West’00 SPIE International Conference, San Jose, U.S.A. SPIE Proc. Vol. 3944, pp. 944-952.
100. Ι.Zacharopoulos, I. Tomkos, D.Syvridis, “Influence of fiber nonlinearities in the performance of an all-optical fiber based demultiplexer”, Photonics West’00 SPIE International Conference, San Jose, U.S.A. SPIE Proc. Vol. 3944, pp. 772-779.
101.  Ι.Tomkos, R. Calvani, I. Zacharopoulos, D.Syvridis, F. Cisternino, E. Riccardi, “All Optical Demultiplexing of 40Gb/s OTDM signal with simultaneous wavelength shift of 19nm”, IEEE LEOS’99 Annual Meeting, 8-11 November, San Francisco, California, U.S.A. ΙΕΕΕ Proc. Vol 1. pp345-346.
102. I.Tomkos, N. Andoniades, D. Syvridis, “Α Modular and Re-configurable Parametric Wavelength Interchanging Cross-Connect Architecture”, IEEE LEOS’99 Annual Meeting, 8-11 November, San Francisco, California, U.S.A. IEEE Proc. Vol. 2 pp 550-551.
103. I.Tomkos, I. Zacharopoulos, E. Roditi, D.Syvridis, F. Girardin, L. Occhi, A. Uscov, “Highly performing wavelength converter based on dual pump wave mixing in semiconductor optical amplifiers“, IEEE LEOS’98 Annual Meeting, 1-4 December, Orlando, Florida, Best Student Paper Award, U.S.A, IEEE Proc. Vol. 1 pp 71-73.
104. I.Tomkos, I. Zacharopoulos, E. Roditi, D.Syvridis, “Experimental investigation of four wave mixing in a 3-electrode distributed feedback laser”, Proceedings of the European Conference on Integrated Optics ECIO’99, 14-17 April 1999, Torino, Italy, pp. 459-463.
105. I.Tomkos, I. Zacharopoulos, D.Syvridis, “Dual pump wave mixing in semiconductor optical amplifiers: Performance enhancement with long amplifiers”, Photonics West ’99 SPIE International Conference, San Jose, U.S.A. SPIE Vol. 3624 pp 240 -248
106. I.Tomkos, I. Zacharopoulos, E. Roditi, D.Syvridis, A. Uscov, “On the polarization sensitivity of a dual pump four wave mixing based wavelength converter”, International Photonics Conference IPC’98, 15-19 December, Taipei, Taiwan
107. I.Tomkos, I. Zacharopoulos, D.Syvridis, T. Sphicopoulos, C. Caroubalos, N. Theofanous, Four wave mixing based wavelength conversion in semiconductor optical amplifiers : Experimental and theoretical results”, SPIE 2nd International Conference on New Laser Technologies and Applications, 1-4 June 1997, Ancient Olympia, Greece
108. Ι.Zacharopoulos, I. Tomkos, D.Syvridis, “Optimization of dispersion shifted fibre phase conjugator including zero dispersion wavelength variation and polarization mode dispersion”, Photonics West’99 SPIE International Conference, San Jose, U.S.A. SPIE Proc. Vol. 3625, pp 145-152.
109. Ι.Tomkos, I. Zacharopoulos, D.Syvridis, “An all-optical strict transparent wavelength conversion technique suitable for integration in transparent optical network nodes”, International Conference on Telecommunications ICT’99,Korea.

8. TUTORIALS PRESENTED AT CONFERENCES

110. I. Tomkos, “Optical transport and switching technologies for ultra-long haul networks”, Tutorial, IEEE/IEE International Conference on Telecommunications, February 2003, Tahiti.
111. I. Tomkos, “Tutorial on Fiber To The Home (FTTH)”, 9th Info-Com conference, October 2nd, 2007, Athens-Greece.

9. PRESENTATIONS AT WORKSHOPS

112. Ioannis Tomkos; et.al. "Dynamic impairment constraint optical networking: the activities of DICONET EU project", OFC 2008 workshop on network planning tools
113. I. Tomkos, “Trends in evolution of broadband services”, 4th Telecommunications Forum, Athens, Greece, Mar 2007.
114. I. Tomkos, “A BReATH project case study: WiMax network deployment in Greece”, BReATH workshop on promoting broadband in NMS EU countries, Geneva, Dec 2006.
115. I. Tomkos and S. Sygletos, “Q-factor modeling and monitoring: Enabling impairment constraint routing in mesh optical networks”, ECOC 2006 Workshop on “WDM system performance evaluation for network design and planning”, Cannes, France.
116. I. Tomkos, “Research and Innovation on broadband networks and services: The situation in Greece”, 8th Greek ICT Forum, Athens, Greece, Oct 2006.
117. I. Tomkos, “Promoting broadband in NMS EU countries and Greece”, BReATH workshop on promoting broadband in NMS EU countries and Greece, Athens, Greece, Sep 2006
118. I. Tomkos, “Broadband development and approaches in Greece: the case of Athens network”, Slovenia, April 5th, 2006.
119. I. Tomkos, “Intermediate findings of BREATH project on technoeconomic analysis for broadband access networks”, Brusells, March 22nd, 2006.
120. I. Tomkos, “Optical access network technologies and architectures”, Workshop organized by NTUA, Athens, Feb 2006
121. I. Tomkos, “Broadband Optical Networks: State of the art and trends”, Workshop organized by TEE, January 2006
122. I. Tomkos, “Methodology for techno-economic evaluation of business plans for broadband access networks”, 3rd Telecommunications Forum, Athens, Dec 2005
123. I. Tomkos, “Value analysis methodology in the framework of the BReATH project”, Broadband for All spronsored workshop on “Technoeconomics for Broadband networks”, Brusells, September 23rd, 2005.
124. I. Tomkos, “Broadband Optical Networks”, (Invited lecture), EESTEC workshop, Athens, April 2005
125.  P. Thysebaert, B. Volckaert, M. De Leenheer, E. Van Breusegem, F. De Turck, B. Dhoedt, D. Simeonidou, M. J. O' Mahony, R. Nejabati, A. Tzanakaki, I. Tomkos, “Towards consumer-oriented photonic Grids”, ECOC2004 workshop on “Optical Infrastructures for Computing Grid Applications”, September 2004
126.  M. De Leenheer, E. Van Breusegem, P. Thysebaert, B. Volckaert, F. De Turck, B. Dhoedt, P. Demeester, D. Simeonidou, M. J. O' Mahony, R. Nejabati, A. Tzanakaki, I. Tomkos, An OBS-based Grid Architecture, Globecom2004 workshop on “High Speed Global Grid Networks”, December 2004
127. A. Tzanakaki and I. Tomkos, “Optical Networking Technologies to Host Grids”, ECOC2004 workshop on “Optical Infrastructures for Computing Grid Applications”, September 2004
128. Dan Owens, Anna Tzanakaki, Ioannis Tomkos, “All-optical flip-flop implementations and characterization”, presented by Ioannis Zacharopoulos, October 17-20, 2004 (Roma), Joint Workshop COST P11 and COST 288, “Physics of linear, non-linear and active photonic crystals”
129. I. Tomkos, “Overcoming the limitations in transparent optical networks”, IST OPTIMIST/COST 266 Workshop, Invited talk, February 2003, Budapest, Hungary.
130. I. Tomkos, “Challenges for transparent optical communication networks”, COST 266 Workshop, Invited talk, October 2002, Rome, Italy.
131. Ι.Tomkos, I. Zacharopoulos, D.Syvridis “Wave mixing in semiconductor devices for optical signal processing applications”, COST267 Workshop on semiconductor devices for optical signal processing, 22-24 April 1999, Rome.
132. D.Syvridis, I. Tomkos, I. Zacharopoulos, “Dual pump wave mixing: Polarization Sensitivity or Enhanced Performance”, ACTS Projects, Photonics domain workshop on WDM networks and related technologies, 6-8 May 1998, Brussels
133. I.Tomkos, I. Zacharopoulos, D.Syvridis, “Wavelength conversion using semiconductor optical amplifiers”, Conference on New Developments in Physics, Ancient Olympia, Greece, 1999
134. I. Zacharopoulos, I.Tomkos, D.Syvridis, “Dispersion compensation using mid span spectral inversion”, Conference on New Developments in Physics, Ancient Olympia, Greece, 1999
135. I.Tomkos, I. Zacharopoulos, D.Syvridis, “Terahertz four wave mixing in semiconductor optical amplifiers. Experimental and theoretical results”, HCM GIGA-PICO workshop 16-17 April 1997, Rhodes, Greece
     

10. OTHER INVITED PRESENTATIONS/PUBLICATIONS

136. I. Tomkos, “The prospects of FTTH in Greece”, 2007 Students Festival series of seminars, Athens, Greece, Dec 2007.
137. I. Tomkos, "Comparative Study and Techno-Economic Analysis of Broadband Access Technologies”, Presentation at EETT, 2006.
138. I. Tomkos, “Enabling impairment constraint routing in mesh optical networks”, AIT, Research Seminar, October 2006.
139. I. Tomkos, “Challenges in designing ultra-long haul optical networks”, guest short course instructor in the IST e-Photon/ONE winter school on “Core networks”, Feb 2005
140. I.Tomkos, “Investing in Information Networking Studies: Opportunities for a promising future”, Gulf Education Event, Workshop & Exhibition, Dubai, UAE, April 2004
141. I. Tomkos, “Broadband Optical Networks”, Insight Magazine, March 2004
142. I. Tomkos, “Challenges in the development of broadband optical networks”, Electronica, 2003
143. I. Tomkos, “The biggest challenge of all… to accelerate the availability of broadband Internet to the home”, Foithsh Forum, 2003
144. I. Tomkos, “All-optical networks”, AIT, Research Seminar, September 2002, Greece.
145. I. Tomkos, “Photonic Communication Systems and Networks”, ETH Seminar on Photonic Communications, June 2002, Zurich.
146. I. Tomkos, “ULH transparent optical networks”, Research Seminar, presented at AT&T and USC November 2002, NJ, USA.
147. I. Tomkos, “Optical Communication Systems and Networks: An Overview”, CMU Research Seminar, October 2002, Pittsburgh, USA.
148. I. Tomkos, “All-optical networks”, AIT, Research Seminar, September 2002, Greece.
149. I. Tomkos, "Characteristics of Directly Modulated Lasers and the Impairments introduced by their use in Metropolitan Area Systems and Networks", Technical Tutorial, Corning, NY, October 2000.
150.  I. Tomkos, "A transparent regional optical network", Workshop, Corning, NY, May 2001.
151. I. Tomkos, “Metropolitan area transparent optical networks”, Technical Tutorial, Corning, NY, November 2001.
152. I. Tomkos, "Directly Modulated Lasers", Invited Talk, presented at Lasertron, Boston, May 2000 & NEL, NJ, November 2000 and Bandwidth9, NJ, July 2001 and AZNA Inc, LA, CA, November 2002.

11. THESES

1. “Wavelength conversion using four-wave-mixing in semiconductor optical amplifiers for applications in all-optical networks”, I. Tomkos, Ph.D. thesis, University of Athens, Dec. 1999.
    
2. 2“Performance study of a DPSK coherent optical communication system”, I. Tomkos, M.Sc. thesis, University of Athens, Greece, May 1996.
    
3. “Digital FIR filters for processing of delta-modulation signals”, I. Tomkos, B.Sc. thesis, University of Patras, Greece, June 1994.

12. PATENTS

• Two patents issued
  (a) “Compensation of laser chirp in fiber systems”
  (b) “Dispersion map desi
gns for optical networks”
 
• Additional patents filed (confidential)
  
  

13. EDUCATIONAL CREDENTIALS

14. WORK EXPERIENCE

• In collaboration with the Dean and AIT’s Directors worked on a number of proposals related with AIT’s business development
• Assisting the Dean and formal Faculty committee(s) in the development of new educational programs and monitoring/support of their implementation
• In collaboration with the Dean and AIT’s Directors setup policies and rules targeting the improvement of AIT’s academic affairs operation
• In collaboration with the Dean I had responsibility related with the Faculty support and development (e.g. faculty promotion, appointment and recognition).
• Assume responsibility to promote as much as possible AIT and its research/educational activities
  

1. EU FP7 STREP – ICT Call 2 project entitled: “APACHE”
2. EU FP7 NoE – ICT Call 2 project entitled: “BONE”
3. EU FP7 STREP – ICT Call 1 project entitled: “DICONET”
4. EU FP7 STREP – ICT Call 1 project entitled: “SARDANA”
5. EU FP7 NoE – ICT call 1 project entitled: “BONE”
6. EU FP6 IP – IST Call 5 project entitled: “PHOSPHORUS”
7. EU FP6 STREP – IST Call 4 project entitled: “TRIUMPH”
8. EU FP6 NoE – IST call 4 project entitled: “e-Photon/ONe”
9. EU FP6 SSA – IST Call 3 proposal entitled: “BReATH - BRoadband e-Services and Access for The Home”.
10. EU Eureka Cluster/CELTIC OPTRONET project (OPtimized Transponders for Robust Optical NETworks).
11. EU Eureka Cluster/CELTIC PROMISE project
12. COST 291 project entitled “Towards digital optical networks”. The action was initiated by the “High-speed networks and optical communications” group of AIT. The project duration is 4 years (10/2004-10/2008).
13. Bilateral Greek-UK collaboration project funded by GSRT and the British Council, “Autonomous optical networks for global grid computing applications - AON”,
14. COST 288 project “Ultrafast and Nanoscale Photonics”.
15. COST 293 Action entitled: “Graphs and algorithms in communication networks”.
16.  Participation in the E-PIX Network of excellence (affiliate partner).

1. Consulting service to HOL regarding a nation-wide broadband network deployment that resulted in a 43ME contract
2. Consulting service to Intracom Telecom regarding a FFTH network deployment

In the past 5 years, his group participated in many (about 50) research project proposals:

1. FP6 IST call 1: 12 proposals in the framework of EU FP7 ICT call 1 (9 passed successfully all threasholds). Led the preparation of 2 proposals (STREP DICONET, STREP OPTIPFLOW).
2. FP6 IST call 2: 7 proposals in the framework of EU FP7 ICT call 2 (5 passed successfully all threasholds). Led the