Ken-ichi Sato

ORCID

Publication Activity (10 Years)

Years Active: 1985-2024
Publications (10 Years): 90

Top Venues

Publications

Ken-ichi Sato
Optical switching will innovate intra data center networks [Invited Tutorial]. J. Opt. Commun. Netw. 16 (1) (2024)
Ryousei Takano, Kiyo Ishii, Toshiyuki Shimizu, Fumihiro Okazaki, Shu Namiki, Ken-ichi Sato
A Fast Control Plane for a Large-Scale and High-Speed Optical Circuit Switch System. CoRR (2024)
Ken-ichi Sato
Optical Switching will Innovate Intra Data Center Networks. OFC (2023)
Ryosuke Matsumoto, Ryotaro Konoike, Hiroyuki Matsuura, Keijiro Suzuki, Takashi Inoue, Kazuhiro Ikeda, Shu Namiki, Ken-ichi Sato
Performance Verification of 7, 424 × 7, 424 Optical Switch Offering 1.4 μs Switching Time. OFC (2023)
Ryotaro Konoike, Hiroyuki Matsuura, Keijiro Suzuki, Ryosuke Matsumoto, Kazuhiro Ikeda, Ken-ichi Sato
Fast (<9.4 μs) Full-C-Band Tuning of Silicon Photonics Double-Ring Filters using Feed-Forward Control. OFC (2023)
Fumikazu Inuzuka, Hiroshi Hasegawa, Kohki Shibahara, Hidenori Takahashi, Takahiro Tsuritani, Kazunori Seno, Naru Nemoto, Emmanuel Le Taillandier de Gabory, Shigeyuki Yanagimachi, Taiji Sakamoto, Kazuhide Nakajima, Masanori Takahashi, Ryuichi Sugizaki, Ryo Nagase, Ken-ichi Sato, Yutaka Miyamoto
Power-saving Aware SDM Photonic Node with the Throughput Scalable to over Peta bit. OECC/PSC (2022)
Ken-ichi Sato, Hiroyuki Matsuura, Ryotaro Konoike, Keijiro Suzuki, Kazuhiro Ikeda, Shu Namiki
Prospects and challenges of optical switching technologies for intra data center networks. JOCN 14 (11) (2022)
Ryosuke Matsumoto, Ryotaro Konoike, Keijiro Suzuki, Takashi Inoue, Shu Namiki, Ken-ichi Sato
Scalable and Fast Optical Circuit Switch Exploiting Colorless Coherent Detection. OFC (2022)
Takuma Kuno, Takumi Mitsuya, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Demonstration of High-Throughput Intra-Datacenter Switches Using Interleaved AWGs for Nyquist WDM. OFC (2022)
Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Paolo Monti
Design and control of highly spectrally efficient photonic networks enabled by fiber-granular routing on overlaid ring-shaped topologies. JOCN 13 (11) (2021)
Hiroshi Hasegawa, Takuma Yasuda, Yojiro Mori, Ken-ichi Sato
Fragmentation-Minimized Periodic Network-Bandwidth Expansion Employing Aligned Channel Slot Allocation in Flexible Grid Optical Networks. IEICE Trans. Commun. (12) (2021)
Yojiro Mori, Ken-ichi Sato
High-port-count optical circuit switches for intra-datacenter networks [Invited Tutorial]. JOCN 13 (8) (2021)
Ryosuke Matsumoto, Ryotaro Konoike, Hiroyuki Matsuura, Keijiro Suzuki, Takashi Inoue, Kazuhiro Ikeda, Shu Namiki, Ken-ichi Sato
Fast Optical Switch Utilizing Coherent Detection Enabled by Cooperative Filtering of Transmission Signal and Local Oscillator (LO) Wavelength Sourced from an LO Bank. OFC (2021)
Ken-ichi Sato
How Optical Technologies Can Innovate Intra Data Center Networks. ICCCN (2021)
Eiji Honda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Demonstration of 4.3 Pbps Optical Circuit Switching for Intra-Datacentre Networks Based on Spatial Super-Channels. ECOC (2020)
Mungun-Erdene Ganbold, Takuma Yasuda, Yojiro Mori, Hiroshi Hasegawa, Fumikazu Inuzuka, Akira Hirano, Ken-ichi Sato
Assessment of Optical Node Architectures for Building Next Generation Large Bandwidth Networks. IEICE Trans. Commun. (6) (2020)
Ken-ichi Sato
Design and Performance of Large Port Count Optical Switches for Intra Data Centre Application. ICTON (2020)
Ryosuke Matsumoto, Ryotaro Konoike, Hiroyuki Matsuura, Keijiro Suzuki, Takashi Inoue, Yojiro Mori, Kazuhiro Ikeda, Shu Namiki, Ken-ichi Sato
Large-Scale and Fast Optical Circuit Switch for Coherent Detection Using Tunable Local Oscillators Formed with Wavelength Bank and Widely-Tunable Silicon Ring Filters. ECOC (2020)
Yojiro Mori, Ken-ichi Sato
Large-Scale Optical Switch Architectures for Intra-Datacentre Networks. ECOC (2020)
Yusaku Ito, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Architecture and Design of Coarse/Fine Hybrid Granular Routing Optical Networks. IEICE Trans. Commun. (2) (2020)
Ryosuke Matsumoto, Takashi Inoue, Ryotaro Konoike, Hiroyuki Matsuura, Keijiro Suzuki, Yojiro Mori, Kazuhiro Ikeda, Shu Namiki, Ken-ichi Sato
Scalable and Fast Optical Circuit Switch Created with Silicon-Photonic Tunable-Filter-Based Local Oscillator Bank and Colorless Coherent Detection. OFC (2020)
Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Dynamically Controlled Flexible-Grid Networks Based on Semi-Flexible Spectrum Assignment and Network-State-Value Evaluation. OFC (2020)
Ryota Hashimoto, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Design of seamlessly and limitlessly expandable OXC and verification tests on its versatile applicability. JOCN 12 (5) (2020)
Keisuke Kayano, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Shoichiro Oda, Setsuo Yoshida, Takeshi Hoshida
Transmission-Quality-Aware Online Network Design and Provisioning Enabled by Optical Performance Monitoring. IEICE Trans. Commun. (6) (2020)
Eiji Honda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
High-Throughput Optical Circuit Switch for Intra-Datacenter Networks Based on Spatial Super-Channels. OFC (2020)
Hitoshi Takeshita, Keiichi Matsumoto, Hiroshi Hasegawa, Ken-ichi Sato, Emmanuel Le Taillandier de Gabory
Improved Optical Amplification Efficiency by Using Turbo Cladding Pumping Scheme for Multicore Fiber Optical Networks. IEICE Trans. Commun. (8) (2019)
Kazuya Okamura, Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Evaluation of WSS Characteristics in Highly Dense WDM Networks. OECC/PSC (2019)
Ken-ichi Sato
How Optical-Circuit/Electrical-Packet Hybrid Switching will Create High Performance and Cost-Effective Data Center Networks. ICTON (2019)
Keisuke Itakura, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Design of and Resiliency Enhancement in Coarse/Fine Hybrid Granular Routing Optical Networks Based on Iterative Path-Pair-Loop Inflation. DRCN (2019)
Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Demonstration of Quasi-Nyquist WDM Networks using Widely Deployed Wavelength-Selective Switches. OFC (2019)
Eiji Honda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Feasibility Test of Large-Scale (1, 424×1, 424) Optical Circuit Switches Utilizing Commercially Available Tunable Lasers. OECC/PSC (2019)
Ryota Hashimoto, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Verification of High Performance and Wide Applicability of Seamlessly Expandable and Limitless OXC. OFC (2019)
Shuhei Yamakami, Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Fumikazu Inuzuka, Akira Hirano
Assessment of Node- and Link- Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services. IEICE Trans. Commun. (3) (2019)
Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Dynamic Control of Transparent Optical Networks with Adaptive State-Value Assessment Enabled by Reinforcement Learning. ICTON (2019)
Hiroshi Hasegawa, Ken-ichi Sato
Switching granularity and intra-node interconnection optimization for large scale optical nodes. OECC/PSC (2019)
Hitoshi Takeshita, Takefumi Oguma, Shinsuke Fujisawa, Yuta Suzuki, Baku Yatabe, Akio Tajima, Hiroshi Hasegawa, Ken-ichi Sato
Enhancing Protection Performance by Effectively Using Spectral Slots of Impairment-Aware Elastic Optical Networks [Invited]. JOCN 10 (1) (2018)
Keisuke Kayano, Hiroshi Saito, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Shoichiro Oda, Setsuo Yoshida, Takeshi Hoshida
Spectrally Efficient and Highly Resilient Grouped Routing Network Enhanced with Optical Performance Monitoring. OFC (2018)
Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Novel Demodulation Framework Based on Quadrature Duo-Binary/Quaternary/Octernary Spectrum Shaping and MLSE for Mitigating Spectrum Narrowing Caused by Node Traversals. ECOC (2018)
Yojiro Mori, Ken-ichi Sato
Large-Scale Optical Circuit Switch Architecture for Intra-Datacenter Networking. OFC (2018)
Hiroshi Hasegawa, Takuma Yasuda, Yojiro Mori, Ken-ichi Sato
Fragmentation-Minimized Transponder Upgrading Employing Channel Bandwidth Aligned Slot Allocation in Flexible Grid Optical Networks. OFC (2018)
Yojiro Mori, Koh Ueda, Keijiro Suzuki, Hiroyuki Matsuura, Ken Tanizawa, Kazuhiro Ikeda, Shu Namiki, Hitoshi Kawashiwa, Ken-ichi Sato
Next-Generation ROADM Employing Bandwidth-Adaptive Silicon-Photonic Filters for Flexible Drop Operation. OFC (2018)
Yojiro Mori, Mungun-Erdene Ganbold, Ryuta Shiraki, Keijiro Suzuki, Hiroyuki Matsuura, Hitoshi Kawashima, Shu Namiki, Kazuhiro Ikeda, Ken-ichi Sato
Fast Optical Circuit Switch Using Monolithically Integrated Silicon-Photonic Space Switch and Wavelength-Tuneable Filter. ECOC (2018)
Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Architecture and Design of Quasi-Nyquist WDM Networks with Flexible Grid Granular Switching. PSC (2018)
Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Spectral utilization efficient coarse granular routing optical networks with resiliency against multiple failures. ICIN (2018)
H. Nagai, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Design and Verification of Large-Scale Optical Circuit Switch Using ULCF AWGs for Datacenter Application. JOCN 10 (7) (2018)
Masaaki Ichiki, Ken-ichi Sato, Yuichi Nakagami
For the Construction of Learning Opportunity for Program Manager -Trial Development of Open Club of Program Manager. IIAI-AAI (2018)
Keisuke Kayano, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Fumikazu Inuzuka, Akira Hirano
A New Framework for Nation-Wide Networking in Future Datacenter-Traffic Centric Era. PSC (2018)
Ken-ichi Sato
Realization and Application of Large-scale Fast Optical Circuit Switch for Data Center Networking. ECOC (2017)
Ken-ichi Sato
Role of grouped routing in creating cost effective and bandwidth abundant networks. ICTON (2017)
Ryota Hashimoto, Shuhei Yamaoka, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Keita Yamaguchi, Kazunori Seno, Kenya Suzuki
First Demonstration of Subsystem-Modular Optical Crossconnect Using Single-Module 6×6 WSS. ECOC (2017)
Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Tipping Point for the Future Scalable OXC: What Size M × M WSS Is Needed? JOCN 9 (1) (2017)
Masahiro Nakagawa, Hiroshi Hasegawa, Ken-ichi Sato
Dynamic Path Provisioning and Disruption-Free Reoptimization Algorithms for Bandwidth on-Demand Services Considering Fairness. IEICE Trans. Commun. (4) (2017)
Shuhei Yamakami, Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Highly reliable large-scale optical cross-connect architecture utilizing M×M wavelength-selective switches. OFC (2017)
Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Joint Pre-, Inline-, and Post-Compensation of Spectrum Narrowing Caused by Traversing Multiple Optical Nodes. ECOC (2017)
Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Optical tunable filter for gridless ROADM. OFC (2017)
Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Hiroyuki Matsuura, Kiyo Ishii, Haruhiko Kuwatsuka, Shu Namiki, Toshio Watanabe, Ken-ichi Sato
Fast Optical Circuit Switch for Intra-Datacenter Networking. IEICE Trans. Commun. (10) (2017)
Kosuke Sato, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Algorithm for Raising OXC Port Count to Meet Traffic Growth at Minimum Cost. JOCN 9 (2) (2017)
Yusaku Ito, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Dynamic control of coarse/fine hybrid granular routing optical networks. OFC (2017)
Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Novel intra- and inter-datacenter converged network exploiting space- and wavelength-dimensional switches. OFC (2017)
Eiji Oki, Naoya Wada, Satoru Okamoto, Naoaki Yamanaka, Ken-ichi Sato
Optical Networking Paradigm: Past, Recent Trends and Future Directions. IEICE Trans. Commun. (9) (2017)
Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Spectral Efficiency Maximization of Grouped Routing Optical Networks With Shared Protection. JOCN 9 (10) (2017)
Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Highly spectral efficient elastic optical network employing grouped optical path routing. OFC (2016)
Kosuke Sato, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Algorithm for raising OXC port count to meet traffic growth at minimum-cost. OFC (2016)
Hiroshi Kawase, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Dynamic Router Performance Control Utilizing Support Vector Machines for Energy Consumption Reduction. IEEE Trans. Netw. Serv. Manag. 13 (4) (2016)
Hiroshi Hasegawa, Yojiro Mori, Ken-ichi Sato
Survivable Grouped Routing Optical Networks with Dedicated Path Protection. IEICE Trans. Commun. (7) (2016)
Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Spectrum utilization maximization in coarse granular optical routing networks that employ fine granular shared protection. DRCN (2016)
Ken-ichi Sato
Impact of node/fiber/WSS degrees in creating cost effective OXCs. ICTON (2016)
Masaki Niwa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Tipping point for the future scalable OXC - What size MxM WSS is needed? OFC (2016)
Kosuke Sato, Hiroshi Hasegawa, Ken-ichi Sato
Disruption-Free Expansion of Protected Optical Path Networks that Utilize Subsystem Modular OXC Nodes. JOCN 8 (7) (2016)
Tomohiro Ishikawa, Hiroshi Hasegawa, Suresh Subramaniam, Ken-ichi Sato
A compact OXC node architecture that exploits dynamic path bundling and routing. ONDM (2016)
Hiroshi Hasegawa, Suresh Subramaniam, Ken-ichi Sato
Node Architecture and Design of Flexible Waveband Routing Optical Networks. JOCN 8 (10) (2016)
Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Residual capacity aware dynamic control of GRE-based routing optical path networks under traffic growth model. OFC (2015)
Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
Large-scale optical-switch prototype compactly implemented with novel functional configuration. OFC (2015)
Akihiro Kadohata, Takafumi Tanaka, Atsushi Watanabe, Akira Hirano, Hiroshi Hasegawa, Ken-ichi Sato
Differential Reliability Path Accommodation Design and Reconfiguration in Virtualized Multi-Layer Transport Network. IEICE Trans. Commun. (11) (2015)
Hiroto Ishida, Hiroshi Hasegawa, Ken-ichi Sato
Highly scalable subsystem modular OXC nodes that host tailored add/drop mechanism. OFC (2015)
Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Novel network control scheme that can substantially reduce link and node costs simultaneously. ECOC (2015)
Hiroshi Hasegawa, Suresh Subramaniam, Ken-ichi Sato
Flexible waveband routing optical networks. ICC (2015)
Tohru Morita, Ken-ichi Sato
Boas' Formula and Sampling Theorem. Axioms 4 (1) (2015)
Hiroshi Hasegawa, Yojiro Mori, Ken-ichi Sato
Resilient grouped routing optical networks with finely granular protection. ONDM (2015)
Ken-ichi Sato
Key technologies to expand optical networking capabilities. ICTON (2015)
Zhishu Shen, Hiroshi Hasegawa, Ken-ichi Sato
Integrity Enhancement of Flexible/Semi-Flexible Grid Networks That Minimizes Disruption in Spectrum Defragmentation and Bitrate-Dependent Blocking. JOCN 7 (4) (2015)
Tomohiro Ishikawa, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Shared protected grouped optical path routing network design employing iterative path group relocation. RNDM@WMNC (2015)
Hiroto Ishida, Hiroshi Hasegawa, Ken-ichi Sato
Hardware Scale and Performance Evaluation of a Compact Subsystem Modular Optical Cross Connect That Adopts Tailored Add/Drop Architecture. JOCN 7 (6) (2015)
Yasuhiro Tanaka, Hiroshi Hasegawa, Ken-ichi Sato
Criteria for Selecting Subsystem Configuration in Creating Large-Scale OXCs. JOCN 7 (10) (2015)
Zhishu Shen, Taiki Kusano, Hiroshi Hasegawa, Ken-ichi Sato
A novel routing and frequency slot assignment scheme that can adapt to transmission speed migration. OFC (2015)
Takaya Miyazawa, Takahiro Hirayama, Hiroaki Harai, Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Wavelength path signalling for WSS/WBSS combined optical switches in hierarchical optical networks. ICTON (2015)
Hiroshi Hasegawa, Ken-ichi Sato
Large scale optical cross-connect: Architecture, performance analysis, and feasibility demonstration. OFC (2015)
Hiroshi Kawase, Hiroshi Hasegawa, Ken-ichi Sato
Router power reduction by active performance control realized with support vector machines. ICNC (2015)
Akihiro Kadohata, Atsushi Watanabe, Akira Hirano, Hiroshi Hasegawa, Ken-ichi Sato
Pre-Adjustment Rerouting for Wavelength Defragmentation in Optical Transparent WDM Networks. IEICE Trans. Commun. (10) (2015)
Shoichi Takashina, Hiroto Ishida, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
Demonstration of large-port-count and compact ROADM that exhibits virtual-C/D/C performance. OFC (2015)
Amornrat Jirattigalachote, Paolo Monti, Lena Wosinska, Yuki Taniguchi, Toshinori Ban, Hiroshi Hasegawa, Ken-ichi Sato
Design of Grouped Routing Entity (GRE)-based optical networks with 100% signal quality guarantee. ONDM (2014)
Shoichi Takashina, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
Low-loss and Low-power-consumption wavelength tunable filter enabling colorless/directionless/contentionless optical drop in ROADMs. ECOC (2014)
Hai-Chau Le, Hiroshi Hasegawa, Ken-ichi Sato
Large capacity optical networks applying multi-stage hetero-granular optical path routing. Opt. Switch. Netw. 11 (2014)
Yasuhiro Tanaka, Hiroshi Hasegawa, Ken-ichi Sato
Performance evaluations of large-scale oxc that achieves modular and hitless expansion. OFC (2014)
Ken-ichi Sato
Implication of inter-node and intra-node contention in creating large throughput photonic networks. ONDM (2014)
Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Enhancement of fiber frequency utilization by employing grouped optical path routing. OFC (2014)
Koh Ueda, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
Novel large-port-count optical-switch architecture for optical interconnection in datacenter. ECOC (2014)
Kensuke Takaha, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato, Toshio Watanabe
A 204.8 Tbps throughput 64×64 optical cross-connect prototype that allows C/D/C add/drop. OFC (2014)
Yuki Terada, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Verification of high frequency spectrum utilization in grouped optical path routing networks under traffic growth scenario. ECOC (2014)
Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato
Fiber-nonlinearity limitation of transmission distances in ultra-dense gridless photonic networks. OFC (2014)

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Publication Activity (10 Years)

Top Topics

Top Venues

Ken-ichi Sato