Nagoya University Sato/Hasegawa Laboratory

1. K. Ueda, Y. Mori, H. Hasegawa, K. Sato and T. Watanabe, "Large-Scale Optical-Switch Prototypes Utilizing Cyclic Arrayed-Waveguide Gratings for Datacenters," OSA Journal of lightwave technology, Issue 99, 2016.
2. K. Ueda, Y. Mori, H. Hasegawa, and K. Sato, "Large-Scale Optical Switch Utilizing Multistage Cyclic Arrayed-Waveguide Gratings for Intra-Datacenter Interconnection," IEEE Photonics Journal, DOI: 10.1109/JPHOT.2016.2635384
3. Y. Terada, Y. Mori, H. Hasegawa, and K. Sato, “Highly spectral efficient networks based on grouped optical path routing,” OSA Optics Express 24, pp. 6213-6228, March 2016. /li>
4. M. Niwa, Y. Mori, H. Hasegawa, and K. Sato, "Novel Optical-Node Architecture Utilizing Asymmetric-Multiport Wavelength-Selective Switches," IEEE Photonics Journal, Vol. 8, Issue 2, April 2016.
5. Kosuke Sato, Hiroshi Hasegawa, and Ken-ichi Sato, “Disruption-Free Expansion of Protected Optical Path Networks that Utilize Subsystem Modular OXC Nodes,” OSA J. Optical Commun. Nework, JOCN, VOL.8, NO.7, JULY 2016, pp 476-485.
6. M. Niwa, Y. Mori, H. Hasegawa, and K. Sato, "Tipping point for the future scalable OXC -What size MxM WSS is needed?-, " Journal of Optical Communications and Networking, Vol. 9, Issue 1, pp. A18-A25, September 2016.

1. K. Ueda, Y. Mori, H. Hasegawa, K. Ishii, H. Kuwatsuka, S. Namiki, H. Matsuura, and K. Sato, “Demonstration of 720x720 optical fast circuit switch for intra-datacenter networks,” Proc. SPIE 9775, Next-Generation Optical Networks for Data Centers and Short-Reach Links III, 977518, February 2016.
2. H. Kawase, Y. Mori, H. Hasegawa, and K. Sato, “Real-time optical path control method that utilizes multiple support vector machines for traffic prediction,” Proc. SPIE 9773, Optical Metro Networks and Short-Haul Systems VII, 977318, February 2016.
3. Y. Ito, Y. Mori, H. Hasegawa, and K. Sato, “Architecture and design of optical path networks utilizing waveband virtual links,” Proc. SPIE 9773, Optical Metro Networks and Short-Haul Systems VII, 977319, February 2016.
4. M. Niwa, Y. Mori, H. Hasegawa, K. Sato, “Tipping point for the future scalable OXC -What size MxM WSS is needed?-,”in OSA Optical Fiber Communication Conference (OFC), Anaheim，USA，March, 2016.
5. Y. Terada, Y. Mori, H. Hasegawa, and K. Sato, “Highly Spectral Efficient Elastic Optical Network Employing Grouped Optical Path Routing”, OFC2015, Anaheim, USA，March 20-24, 2016
6. K. Sato, Y. Mori, H. Hasegawa, and K. Sato, “Algorithm for raising OXC port count to meet traffic growth at minimum-cost”, OFC2015, Anaheim, USA, March 20-24, 2016
7. T. Ishikawa, Y. Mori, H. Hasegawa, K. Sato, "Spectrum Utilization Maximization in Coarse Granular Optical Routing Networks that Employ Fine Granular Shared Protection," accepted to Design of Reliable Communication Networks 2016, March, Paris, French, 2016.
8. K. Ueda, Y. Mori, H. Hasegawa, and K. Sato, "Low-Loss and Large-Scale Optical Switch Utilizing Asymmetric-Port-Count Cyclic AWGs," ICP2016, pp.*-*, Kuching, Malaysia, March, 2016.
9. H. Kawase, Y. Mori, H. Hasegawa, and K. Sato, "Cycle-Slip-Tolerant Decision-Boundary Creation with Machine Learning," ICP2016, pp.*-*, Kuching, Malaysia, March, 2016.
10. T. Ishikawa, H. Hasegawa, S. Subramaniam, and K. Sato, "A Compact OXC Node Architecture That Exploits Dynamic Path Bundling and Routing," IEEE International Conference on Optical Network Design and Modeling (ONDM), paper S8-3, Cartagena, Spain, May 2016.
11. Ken-ichi Sato, “How optical technologies can compensate the imminent demise of Moore's law?” 2016 IEEE 17th International Conference on High Performance Switching and Routing (HPSR 2016), Yokohama, June 14-17, 2016.
12. Ken-ichi Sato, “Optical networking and node technologies for creating cost effective bandwidth abundant networks,” OECC/PS 2016 2016 (The 21st OptoElectronics and Communications Conference/International Conference on Photonics in Switching 2016), ThA1-2, July 3-7, 2016, Niigata, Japan.
13. T. Ishikawa, M. Niwa, K. Ueda, Y. Mori, H. Hasegawa, S. Subramaniam, K. Sato, and O. Moriwaki, “Hardware Scale Analysis and Prototype Development of Flexible Waveband Routing OXCs," OptoElectronics and Communication Conference/ Photonics in Switching (OECC/PS), Paper TuA1-4, Niigata, Japan, July 2016.
14. K. Ueda et al., “Demonstration of 1,440x1,440 Fast Optical Circuit Switch for Datacenter Networking,” Optoelectronics and Communications Conference/International Conference on Photonics in Switching(OECC/PS), paper WF1-3, Toki Messe, Japan, July 2016.
15. K. Ueda, Y. Mori, H. Hasegawa, and K. Sato, “Recent progress in large-scale optical switches for intra-datacenter interconnection,” Progress in Electromagnetic Research Symposium(PIERS), in the Proceedings of PIERS pp. 2369-2373, Shanghai, China, July 2016.
16. Ken-ichi Sato, “Impact of node/fiber/wss degrees in creating cost effective OXCs,” The 18th International Conference on Transparent Optical Networks ICTON 2016, Trento, Italy, Th.B1.6, July 10-14, 2016.
17. Y. Isono, M. Niwa, Y. Mori, H. Hasegawa, K. Sato, “Spectral-Efficiency Maximization with Subcarrier-Multiplexed Hybrid-QAM Signals Adaptive to Distance and Hop Count,” Proc. ECOC, Paper Th.1.E.3, Dusseldorf, Germany, September 2016.
18. M. Niwa, Y. Mori, H. Hasegawa, and K. Sato, "MxM WSS Based ROADM Architecture with Topology Insensitive Routing Performance," 42nd European Conference on Optical Communication (ECOC), paper W.4.P1.SC4.7, Dusseldorf, Germany September, 2016.
19. K. Ueda et al., “Large-Scale Optical Circuit Switch for Intra-Datacenter Networking Using Silicon-Photonic Multicast Switch and Tunable Filter,” European Conference and Exhibition on Optical Communication (ECOC), paper W.2.F.2, Dusseldorf, Germany, September 2016.
20. Y. Ito, Y. Mori, H. Hasegawa, and K. Sato, “Optical Networking Utilizing Virtual Direct Links,” in European Conference and Exhibition on Optical Communication (ECOC), paper W.4.P1.SC6.3, September 2016, Germany.
21. K. Ueda et al., “Experimental Demonstration of 2,160x2,160 Optical Circuit Switch for Intra-datacenter Networking,” IEEE Photonics Conference(IPC), paper MB4.2, Hawaii, USA, October 2016.
22. S. Yamakami, M. Niwa, Y. Mori, H. Hasegawa, and K. Sato, "Highly Reliable and Cost-Effective Large-Scale Optical Cross-Connect Architecture ," IEEE Photonics Conference, paper WD2.4, Hawaii, USA, October 2016.
23. K. Ueda, Y. Mori, H. Hasegawa, K. Sato, and T. Watanabe, “Large-Scale and Simple-Configuration Optical Switch Enabled by Asymmetric-Port-Count Subswitches,” IEEE Photonics Conference(IPC), paper ThG1.2, Hawaii, USA, October 2016.
24. M. Niwa, Y. Mori, H. Hasegawa, and K. Sato, "Novel Optical-Node Architecture Utilizing Asymmetric-Multiport Wavelength-Selective Switches," IEEE Photonics Conference (IPC), paper 0823-000437, Waikoloa, Hawaii, USA, October 2016.
25. Y. Ito, M. Niwa, K. Ueda, Y. Mori, H. Hasegawa, and K. Sato, “Demonstration of Virtual Direct Link Optical Networks,” in IEEE Photonics Conference (IPC), paper WD1.5, October 2016, USA.
26. Ken-ichi Sato, “What are the keys to create flexible, scalable and cost-effective OXC/ROADM?” Asia Communications and Photonics Conference (ACP 2016), Workshop 8: Towards Next Generation Optical Networks: Evolution and Challenges, Wuhan, China, November 2, 2016.

1. K. Sato,“Changes in carrier environment caused by OTT, and photonic networking technologies for the future, “ The 24nd Photonic Divece and Application Technical Group Workshop, Sophia University, January 13, 2016, pp. 1-25.
2. H. Hasegawa, Y. Mori, and K. Sato,“Protected Coarse Granular Routing Optical Networks,“ IEICE Photonic Network Technical Group, Technical Report PN2015-63, pp. 181-187，Kobe，January 28, 2016.
3. K. Ueda, Y. Mori, H. Hasegawa, and K. Sato, “Large-scale optical switch with asymmetric sub-switch connections for datacenter application,” Laser Society Lecture 36th Annual Conference, The Laser Society of Japan, G.09p�Z4, January 9-11, 2016, Meijo University.
4. Y. Terada, Y. Mori, H. Hasegawa, and K. Sato, “Novel optical network architecture that achieves link capacity enhancement and node hardware reduction,” IEICE Optical Communication System Technical Group, IEICE Technical Report OCS2015-89 (2016-01), pp. 7-12, Kagoshima, January 21, 2016.
5. H. Kawase, Y. Mori, H. Hasegawa, K. Sato,“Evaluation of router power reduction by processing speed control utilizing support vector machines, “IEICE Photonic Network Technical Group, Technical Report PN2016-**, Okinawa, March 7-March 8, 2016, pp. **-**.
6. S. Yamagami, M. Niwa, Y. Mori, H. Hasegawa, K. Sato,“Highly resilient optical cross-connect architecture, “IEICE Photonic Network Technical Group, Technical Report PN2016-**, Okinawa, March 7-March 8, 2016, pp. **-**.
7. K. Ito, Y. Mori, H. Hasegawa, K. Sato,“Node-degree dependency on of routing performance of in subsystem-modular optical cross-connects, “IEICE Photonic Network Technical Group, Student Workshop, Technical Report PN2016-**, Okinawa, March 7-March 8, 2016, pp. **-**.
8. S. Yamakami, M. Niwa, Y. Mori, H. Hasegawa, K. Sato,“Highly resilient subsystem-modular optical cross-connect architecture, “IEICE Photonic Network Technical Group, Technical Report PN2016-**, Okinawa, March 7-March 8, 2016, pp. **-**.
9. Yusaku Ito, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato,“Performance Improvement of Optical Networks with Waveband Virtual Links,” IEICE General Conference 2016, BS-3-3, Kyusyu University, March 15-18, 2016.
10. M. Niwa, Y. Mori, H. Hasegawa, and K. Sato, “Large-scale optical node architecture utilizing MxM wavelength-selective switches,”IEICE General Conference 2016, B-10-75, Kyusyu University, March 15-18, 2016.
11. S. Yamakami, M. Niwa, Y. Mori, H. Hasegawa, and K. Sato, “Highly reliable subsystem-modular optical cross-connect architecture,”IEICE General Conference 2016, B-10-20, Kyusyu University, March 15-18, 2016.
12. K. Ito, Y. Mori, H. Hasegawa, and K. Sato, “Node-degree dependency of routing performance of subsystem-modular OXC,”IEICE General Conference 2016, B-10-21, Kyusyu University, March 15-18, 2016..