Professor Ken-ichi Sato


Ken-ichi Sato is currently a professor at the graduate school of Engineering, Nagoya University, and he is an NTT R&D Fellow. Before joining the university in April 2004, he was an executive manager of the Photonic Transport Network Laboratory at NTT. His R&D activities covers future transport network architectures, network design, OA&M (operation administration and maintenance) systems, photonic network systems including optical cross-connect/ADM and photonic IP routers, and optical transmission technologies. He has authored/co-authored more than 180 research publications in international journals and conferences. He holds 35 granted patents and more than 100 pending patents.

     He received his B.S., M.S., and Ph.D. degrees in electronics engineering from the University of Tokyo, Tokyo, Japan, in 1976, 1978, and 1986, respectively. He received the Young Engineer Award in 1984, the Excellent Paper Award in 1991, and the Achievement Award in 2000 from the Institute of Electronics, Information and Communication Engineers (IEICE) of JAPAN. He was also the recipient of the distinguished achievement Award of the Ministry of Education, Science and Culture in 2002. His contributions to ATM (Asynchronous Transfer Mode) and optical network technology development extend to co-editing three IEEE JSAC special issues and the IEEE JLT special issue once, organizing several Workshops and Conference technical sessions, serving on numerous committees of international conferences including OFC and ECOC, authoring a book, Advances in Transport Network Technologies (Artech House, 1996), and co-authoring six other books. He is a Fellow of the IEICE of JAPAN and a Fellow of the IEEE.

Research Activity and Responsibilities


2004-Present      Nagoya University; Professor at Department of Electrical Engineering and Computer Science,
Graduate School of Engineering

He holds the chair of Communication Networks. He teaches a class on information communication networks. His research interests include photonic network technologies, network design issues, traffic engineering, network control and operations, and network performance evaluation.

1999-2004      NTT; Executive Director, Photonic Transport Network Laboratory

Responsible for the R&D of photonic transport networks including multi-protocol/layer network design, GMPLS(Generalized Multi-Protocol Label Switching) technologies and the photonic MPLS router, and cutting-edge photonic technologies such as supercontinuum optical sources and photonic crystal fibers. Also co-directing with business units the introduction of optical cross-connect systems and reconfigurable optical Add/Drop multiplexers.

1993-1998      NTT; Group Leader in Optical Network Systems Laboratories

Leader of Photonic Transport Network Systems Group working on photonic transport network architectures, network design, OA&M (operation administration and maintenance) systems, and photonic network hardware systems including optical cross-connect systems, optical Add/Drop multiplexers, dense WDM transmission systems and the related optical technologies.

1985-1993      NTT; Supervisor in Transport Processing Laboratory

Research leader in Transport Processing Laboratory working on a B-ISDN based on ATM technologies. Responsible for R&D on ATM networking technologies including transport network architecture development, network resource management (ATM network performance analysis, ATM traffic control and ATM network QOS(Quality of Service) design), OA&M, network restoration (self-healing), ATM cross-connect systems, and standardization.

1978-1985      NTT; Research Engineer in Optical Communications Laboratories

Responsible for the R&D of optical fiber transmission technologies for CATV distribution systems and analog video transmission systems, using baseband and sub-carrier modulation of laser diodes.

Principal Honors


(1) 1984, the Young Engineer Award from the IEICE (Institute of Electronics, Information and Communication Engineers) of JAPAN
(2) 1990, the Excellent Paper Award from the IEICE of JAPAN
(3) 1991, the NTT R&D Award for his contribution to ATM network architecture and system technology development
(4) 1995, the NTT President Award for his contribution to ATM network system development and its introduction
(5) 1999, IEEE Fellow Award: For contributions to the architecture and technologies of Asynchronous Transfer Mode networks and photonic networks.
(6) 2000, the Achievement Award from the IEICE of JAPAN for his contribution to pioneering works on photonic transport network research and development
(7) 2002, Commendation by the Minister of Education, Culture, Sports, Science and Technology for his contribution to photonic transport network technologies development
(8) 2003, IEICE Fellow Awards
(9) 2004, NTT R&D Fellow Awards: For pioneering research and development of photonic networks
(10) 2005, IEICE Communications Society, Praise for distinguished services for leading and managing Photonic Networking technical group
(11) 2007, IEICE Communications Society Best Tutorial Paper Awards: Recent developments in and challenges of photonic networking technologies

Book Publication


  1. K. Sato and K. Asatani, "Fiber optic analog video transmission using semiconductor laser diodes," in Japan Annual Reviews in Electronics, Computers & Telecommunications ---- Optical Devices & Fibers 1982-------, Tokyo: Ohm Publishing Co., 1982, pp. 351-368.
  2. Broadband ISDN and ATM Technologies: Institute of Electronics, Information and Communication Engineers of JAPAN edit, co-author, February 1995, in Japanese (ISBN 4-88552-127-0).
  3. K. Sato, Advances in Transport Network Technologies: Photonic networks, ATM, and SDH, Artech House, Norwood, 1996, (ISBN 0-89006-851-8).
  4. Multimedia Communication Networks: Technologies and Services, Chapter 6: Trunk Transport Network Architectures and Technologies for Multimedia Services, Artech House, 1998 (ISBN 0-89006-936-0).
  5. Broadband Photonic Networking Technologies , K. Sato edit, Institute of Electronics, Information and Communication Engineers of JAPAN, 2003 (ISBN: 4-88552-193-9).
  6. WDM Technologies: Optical Networks, Edited by K. Dutta, N. K. Dutta and M. Fujiwawa, A volume in the Optics and Photonics Series, Chapter 3: Optical Path Cross-Connect, Elsevier Inc., San Diego, USA (ISBN: 0-12-225263-2).

Other seven books in Japanese.

Principal International Professional Activities I (Conferences/Workshops)


(After 1990)

  1. 1990, GLOBECOM '90 Session Organizer: Session 120; Transport Network Reliability Enhancement
  2. 1993, Co-organizer of the OFC/IOOC '93 Workshop of "Theory and Modeling of Lightwave Networks"
  3. 1995, Co-organizer of the First IEEE ComSoc ICC '95 Workshop on WDM Optical Network Management and Control
  4. 1996, Co-organizer of the Second IEEE ComSoc ICC '96 Workshop on WDM Network Management and Control
  5. 1997, ICC '97 Session Chair: Session 12; WDM Optical Networks
  6. 1997, Co-organizer of the Third IEEE ComSoc ICC '97 Workshop on WDM Network Management and Control
  7. 1997, IEEE LEOS 1997 Summer Topical Meetings Program Committee Member
  8. 1997, APCC '97 Technical Program Committee Member
  9. 1998, OECC '98, Third Optoelectronics and Communications Conference, Program Committee Member
  10. 1997, Globecom '97 Session Chair: Session 16; Optical Networks
  11. 1998, Co-organizer of the OFC '98 Workshop of "Optical Networking: Do the Network Operators need it?"
  12. 1998, Co-organizer of the Fourth IEEE ComSoc ICC '98 Workshop on WDM Network Management and Control
  13. 1998, Co-organizer of the OECC '98 (Third Optoelectronics and Communications Conference) Workshop on Impact of Photonic Networks on Multimedia Networking
  14. 1998, OECC '98 (Third Optoelectronics and Communications Conference) Session Chair: Session 15D1; Towards the Photonic Networks; Today and Future.
  15. 1999, Member of the OFC/IOOC '99 Technical Program Committee; Networks, Switching and Access Subcommittee
  16. 1999, 3rd IEEE International Workshop on Broadband Switching Systems, BSS '99 Technical Program Committee Member
  17. 2000, IEEE ComSoc Workshop on IP-oriented Operations & Management IPON 2000, International Advisory Committee Member (Poland, Sept. 18-20, 2000).
  18. 2000, IEICE Fifth Optoelectronics and Communications Conference OECC 2000, International Advisory Committee Member (Makuhari, Japan, July 11-14, 2000)
  19. 2000, IEEE Globecom 2000 Symposium on Future Photonic Network Technologies, Architectures and Protocols, Technical Program Committee Member (San Francisco, Nov. 27-Dec. 1, 2000)
  20. 2000, Member of the ECOC 2000 Technical Program Committee, Subcommittee 4; Networks and Switching
  21. 2000, Globecom 2000 -Photonic Network Technologies Architectures & Protocol Symposium-,Session P-3 WDM Network Protocols, Organizer, IEEE Globecom 2000, 27 November-1 December, San Francisco.
  22. 2001, Member of the OFC 2001 Technical Program Committee; Transmission Systems Subcommittee
  23. 2001, OHAN/FSAN 2001, International Workshop on Optical Hybrid Access Networks/Full Service Access Networks 2001, Local Advisory Committee Member, April 4-6, 2001, Yokohama, Japan.
  24. 2001, Member of the ECOC 2001 Technical Program Committee, Subcommittee 4; Networks and Switching
  25. 2002, Member of the OFC 2002 Technical Program Committee; Transmission Systems Subcommittee
  26. 2002, ICC 2002 Symposium on Optical Networking, Technical Program Committee Member, New York, April 28-May 2, 2002
  27. 2002, Member of the Technical Program Committee of the High Speed Networks Symposium, IEEE Globecom 2002.
  28. 2002, Conference Co-Chair, Optical Transmission Systems and Equipment for WDM Networking, Part of SPIE's ITCom 2002- International Symposium and Exhibit on the Convergence of Information technology and Communications, 5-7 August, 2002, Boston, Massachusetts.
  29. 2002, Member of the ECOC 2002 Technical Program Committee, Subcommittee 4; Networks and Switching
  30. 2002, Member of the Program Committee of IEEE LEOS Summer Topical Meetings, All-Optical Networks: Existing and emerging architectures and applications, July 15-17, 2002.
  31. 2002, Member of the Technical Program Committee of 2002 IEEE Workshop on IP Operation & Management (IPOM 2002), Dallas, Texas, October 29-31, 2002.
  32. 2002, Member of the Program Committee of the 15th IEEE LEOS Annual Meeting, Glasgow, Scotland, November 10-14, 2002.
  33. 2003, Co-chair of the Optical Networks Committee for the 5th Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PR 2003), Taipei, Taiwan, July 22-26, 2003.
  34. 2003, ECOC 2003 Advisory Board Member and Member of the Technical Program Committee, Subcommittee 5; Networks and Network Applications.
  35. 2003, Executive Organizer of SPIE's ITCom 2003, and Conference Co-Chair, Optical Transmission Systems and Equipment for WDM Networking II, Part of SPIE's ITCom 2003, 7-11 September, 2003, Orlando, Florida.
  36. 2003, Member of the International Advisory Committee of APOC 2003 (3rd Asia-Pacific Optical and Wireless Communications Conference), Wuhan, China, Nov. 2 - 6, 2003.
  37. 2003, Member of the Program Committee of the 16th IEEE LEOS Annual Meeting, Tuscon, Arizona, October 26-30, 2003.
  38. 2004, Vice-General Chair, OECC/COIN 2004, Yokohama, Japan, July 12-16, 2004.
  39. 2004, Member of the Program Committee of the 17th IEEE LEOS Annual Meeting, Puerto Rico, November 7-11, 2004.
  40. 2004, Organizing Committee Member of SPIE's ITCom 2004, and Conference Co-Chair, Optical Transmission Systems and Equipment for WDM Networking III (IT202), 25-28 October, 2004, Philadelphia, Pennsylvania.
  41. 2004, ECOC 2004, Member of the Technical Program Committee, Subcommittee 5; Networks and Network Applications, Stockholm, September 5-9, 2004.
  42. 2004, Member of the International Advisory Committee of APOC 2004 (Asia-Pacific Optical Communications Conference), Beijing, China, Nov. 7 - 11, 2004.
  43. 2004, OECC/COIN 2004, Session 14B1, Session Chair, Yokohama, Japan, July 12-16, 2004.
  44. 2005, COIN 2005 (The Fourth International Conference on Optical Internet), Member of the International Organizing Committee, 29 May - 2 June 2005, Chongqing, China.
  45. 2005, OECC 2005, Member of the Program Committee, and co-chair of the Technical Program Committee Sub-committee 1 (Optical Networks and Applications), Seoul July 5-8, 2005.
  46. 2005, APOC 2005 (Asia-Pacific Optical Communications Conference) International Advisory Committee Member and Co-chair of Sub-committee 4, Shanghai, China, Nov. 7 - 10, 2005.
  47. 2005, Conference Co-Chair, OpticsEast, Optical Transmission Systems and Equipment for WDM Networking IV (IT202), October 23-26, 2005, Boston, (Conference Chair; Ken-ichi Sato, Werner Weiershausen, Achyut K. Dutta, and Benjamin B. Dingle).
  48. 2005, ECOC 2005 Advisory Board Member and Member of the Technical Program Committee, Subcommittee 5; Networks and Network Applications, Birmingham, September 25-28, 2005.
  49. 2005, LEOS Annual Meeting, Member of the Technical Program Committee, ONS(Optical Networks and Systems) Subcommittee, October 23-27, 2005, Sydney.
  50. 2006, APOC 2006 (Asia-Pacific Optical Communications Conference), Co-chair of Sub-committee 4, Seoul, Korea, Sept. 3 - 7, 2006.
  51. 2006, COIN-NGNCON 2006 (The Joint International Conference on Optical Internet and Next Generation Network), Technical Committee Co-Chair, 2-6 June 2006, Jeju, Korea.
  52. 2006, OpticsEast, Optical Transmission Systems and Equipment for WDM Networking V (IT302), Co-chair, October 1-4 2006, Boston, USA.
  53. 2006, OpticsEast, Broadband Access Communication Technologies (IT305), Member of the Technical Program Committee, October 1-4 2006, Boston, USA.
  54. 2006, ECOC 2006, Member of the International Advisory Committee and Technical Program Committee, Subcommittee 4; Backbone and Metro Core Networks, Cannes, September 24-28, 2006.
  55. 2006, LEOS Annual Meeting, Member of the Technical Program Committee, ONS (Optical Networks and Systems) Subcommittee, October 29-November 2, 2006, Montreal, Canada.
  56. 2007, CLEO/Pacific Rim 2007, Co-Chair of Technical Sub-committee, Optical Communications, Networks, and Interconnects, August 26-31, 2007, Korea.
  57. 2007, OpticsEast, Optical Transmission Systems and Equipment for WDM Networking VI (IT402), Co-chair, September 9-12 2007, Boston, USA.
  58. 2007, Photonics in Switching, Member of the Technical Program Committee, August 19-22 2007, San Francisco, USA.
  59. 2007, International Workshop on GRID over Optical Burst Switching Networks, GOBS 2007, Member of the Technical Program Committee, Athens, Greece, June 19-25, 2007.
  60. 2007, ECOC 2007, Member of the Technical Program Committee, Subcommittee 5; Backbone and Core Networks, Berlin, September 16-20, 2007.
  61. 2007, APOC 2007 (Asia-Pacific Optical Communications Conference), Member of the Technical Program Committee, Subcommittee 3; Optical Transmissions, Switching and Sub-Systems, Wuhan, China, November 5 - 9, 2007.
  62. 2008, ICNS 2008, The Fourth International Conference on Networking and Services, Member of the International Program Committee, March 16-21, 2008, Gosier, Guadeloupe.
  63. 2008, ICC'08 Optical Networks and Systems Symposium, Member of the technical program committee, 19-23 May, 2008, Beijing China.
  64. 2008, COIN 2008, Technical Program Committee Chair, Akihabara, Tokyo, November 14-16, 2008.

Principal International Professional Activities II (Journal Editing)

  1. 1988-1998, a member of the editorial advisory board of the International Journal of Communication Systems, published by Wiley.
  2. 1990, a guest co-editor of the special issue of the IEEE J-SAC on "Applications of RF and Microwave Subcarriers to Optical Fiber Transmission", vol. 8, No. 7, September 1990 (Edited by W. I. Way, R. Olshansky and K. Sato)
  3. 1994, a guest co-editor of the special issue of the IEEE J-SAC on "Integrity of Public Telecommunication Networks", vol. 12, No. 1, January 1994 (Edited by T-H. Wu, J. C. McDonald, T. P. Flanagan, and K. Sato)
  4. 1997-1998, a co-guest editor of the special issue of the IEEE J-SAC on "High-Capacity Optical Transport Networks", vol. 16, No. 7, September 1998 (Edited by Adel Saleh, Alan Hill and K. Sato)
  5. 1999-2003, a member of the Editorial Board of the Optical Networks Magazine, published by SPIE (The International Society of Optical Engineering).
  6. 1999-2000, a co-guest editor of the special issue of the IEEE JLT on " Optical Networks", vol. 18, No. 12, December 2000 (Edited by G. K. Chang, K. Sato and D. Hunter)
  7. 1999-2000, a member of Editorial Committee of the special issue of the IEICE, on "Advanced Internetworking based on Photonic Network Technologies," vol. E83-B, No. 10, October 2000.
  8. 2004.2-present, An Associate Editor of the IEEE J-SAC.
  9. 2004, Guest editor-in-chief, Special Section on the Next Generation Photonic Network Technologies, IEICE Transactions on Communications, vol. E88-B, No. 10, October 2005.
  10. 2006, Guest editor, Special Section on the Future Topics on Latest Trends in Optical Networks, IEICE Transactions on Communications, vol. E**-B, No. *, 2007.