Ryuichi Sugizaki

59 papers Misc 1Journal 5Unranked 53

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Spatial channel network (SCN): implementation and feasibility demonstrations of modular spatial cross-connects using three types of packaged 19-core-fiber-based optical switches. J. Opt. Commun. Netw. Masahiko Jinno, Ryohei Otowa, Yusuke Matsuno, Daiki Soma, Ryunosuke Sasaki, Yuji Hotta, Tsubasa Sasaki, Kosuke Komatsu, Takuma Izumi, Koichi Maeda, Shohei Beppu, Kyosuke Nakada, Shigehiro Takasaka, Yuta Wakayama, Rika Tahara, Noboru Yoshikane, Takumi Tani, Yasuki Sakurai, Ryuichi Sugizaki, Takehiro Tsuritani
2025	—	`conf`	Demonstration of 4-Core/16-Core Fiber Heterogeneous Spatial Channel Network Comprising 19-Core Fiber Core Selective Switch-Based Spatial Gateway, 4-Core EDFAs, and 19-Core EDFAs. OFC Takumi Tani, Daiki Soma, Ryohei Otowa, Yusuke Matsuno, Kyosuke Nakada, Kosuke Komatsu, Yuji Hotta, Tsubasa Sasaki, Rika Tahara, Shohei Beppu, Koichi Maeda, Takuma Izumi, Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani, Yasuki Sakurai, Ryuichi Sugizaki, Masahiko Jinno
2025	—	`conf`	Implementation and Demonstration of Contention-Less 19-Core Fiber-Based Spatial Cross-Connect Using Packaged Core Selective Switches and Core-Port Selectors. ECOC Ryunosuke Sasaki, Ryohei Otowa, Yusuke Matsuno, Rika Tahara, Tsubasa Sasaki, Kyosuke Nakada, Masanori Takahashi, Yasuki Sakurai, Ryuichi Sugizaki, Masahiko Jinno
2025	—	`conf`	Phase-preserving amplitude regeneration in a Mamyshev regenerator with group-delay-managed nonlinear medium and mid-stage optical phase conjugation. OFC Cheng Guo, Hamed Rabbani, Mohammad Awwad, Youichi Akasaka, Paparao Palacharla, Ryuichi Sugizaki, Shigehiro Takasaka, Michael Vasilyev
2025	—	`conf`	Practical Wavelength Conversion Techniques Using Highly Nonlinear Fibers. OFC Shigehiro Takasaka, Ryuichi Sugizaki, Masanori Takahashi
2024	—	`conf`	Fiber Bundle Fan-in/Fan-out (FIFO) for Coupled MCF with High-Δ 4-Core Fiber Pitch Converter. OFC Masanori Takahashi, Tsubasa Sasaki, Ryuichi Sugizaki
2024	—	`conf`	Standard Coating Diameter Uncoupled 19-Core Multicore Fiber with Highest Core Density for Optical Wiring. OFC Yusuke Matsuno, Ryuichi Sugizaki, Masanori Takahashi
2023	—	`conf`	4-Core Fiber Narrow Pitch Fanout Comprised of Tapered High-Δ MCF. OFC Masanori Takahashi, Tsubasa Sasaki, Ryuichi Sugizaki, Yoshihiro Arashitani
2023	J	`jnl`	Bidirectional single-multicore-fiber spatial channel network based on a spatial cross-connect and multicore EDFA that efficiently accommodates asymmetric data traffic. JOCN Kyosuke Nakada, Hitoshi Takeshita, Yuki Kuno, Yusuke Matsuno, Itsuki Urashima, Yusuke Shimomura, Yuji Hotta, Tsubasa Sasaki, Yudai Uchida, Kohei Hosokawa, Ryohei Otowa, Rika Tahara, Emmanuel Le Taillandier de Gabory, Yasuki Sakurai, Ryuichi Sugizaki, Masahiko Jinno
2023	Misc	`conf`	Characteristics and System Impact of Multipath Interference in Optical Devices with Short Multicore Fibers for Spatial Channel Networks. PSC Kyosuke Nakada, Yusuke Matsuno, Yudai Uchida, Masanori Takahashi, Rika Tahara, Takuma Izumi, Ryuichi Sugizaki, Masahiko Jinno
2023	—	`conf`	Design and applications of Highly nonlinear fibers. OFC Ryuichi Sugizaki, Masanori Takahashi, Shigehiro Takasaka, Toshio Kimura
2023	—	`conf`	Low Fusion Splice Loss Technique for Multicore Fiber with 2- and 3-electrode Fusion Splicers. OFC Toshiyuki Fujii, Masanori Takahashi, Ryuichi Sugizaki, Akio Tanabe, Yoshihiro Arashitani
2023	—	`conf`	Single Multicore-Fiber Bidirectional Spatial Channel Network Based on Spatial Cross-Connect and Multicore EDFA Efficiently Accommodating Asymmetric Traffic. OFC Kyosuke Nakada, Hitoshi Takeshita, Yuki Kuno, Yusuke Matsuno, Itsuki Urashima, Yusuke Shimomura, Yuji Hotta, Tsubasa Sasaki, Yudai Uchida, Kohei Hosokawa, Ryohei Otowa, Rika Tahara, Emmanuel Le Taillandier de Gabory, Yasuki Sakurai, Ryuichi Sugizaki, Masahiko Jinno
2023	—	`conf`	Temperature-tuned two-segment highly-nonlinear fiber with increased stimulated Brillouin scattering threshold. OFC Cheng Guo, Michael Vasilyev, Youichi Akasaka, Paparao Palacharla, Shigehiro Takasaka, Ryuichi Sugizaki
2022	—	`conf`	4-Core Fan-out with Practical Environmental Performance. OECC/PSC Tsubasa Sasaki, Masanori Takahashi, Ryuichi Sugizaki, Yoshihiro Arashitani
2022	—	`conf`	Core Selective Switch Supporting 15 Cores Per Port Using Bundled Three 5-Core Fibers. OFC Yudai Uchida, Tsubasa Ishikawa, Itsuki Urashima, Shoma Murao, Takahiro Kodama, Yasuki Sakurai, Ryuichi Sugizaki, Masahiko Jinno
2022	—	`conf`	Design of 19-Core Multicore Fibers for High Density Optical Wiring. OECC/PSC Yusuke Matsuno, Masanori Takahashi, Ryuichi Sugizaki, Yoshihiro Arashitani
2022	—	`conf`	Fan-in/Fan-out for multicore fibers. OECC/PSC Masanori Takahashi, Kohei Kawasaki, Ryuichi Sugizaki, Yoshihiro Arashitani
2022	—	`conf`	Multicore Fiber Fusion Splicer Suitable for Practical Applications. OECC/PSC Masanori Takahashi, Toshiyuki Fujii, Ryuichi Sugizaki, Akio Tanabe, Yoshihiro Arashitani
2022	—	`conf`	Power-saving Aware SDM Photonic Node with the Throughput Scalable to over Peta bit. OECC/PSC Fumikazu Inuzuka, Hiroshi Hasegawa, Kohki Shibahara, Hidenori Takahashi, Takehiro 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
2022	—	`conf`	S-band Amplifier Using Highly Nonlinear Fibers. OECC/PSC Youichi Akasaka, Shigehiro Takasaka, Ryuichi Sugizaki, Cheng Guo, Michael Vasilyev
2021	—	`conf`	Digital Compensation of Residual Pump Dithering in Optical Phase Conjugation of High-Order QAM. OFC Tu Thanh Nguyen, Sonia K. Boscolo, Abdallah A. I. Ali, Mingming Tan, Stylianos Sygletos, Shigehiro Takasaka, Ryuichi Sugizaki, Andrew D. Ellis
2021	—	`conf`	Kernel-Based Learning-Aided Phase Noise Compensation in Dual-Pump Optical Phase Conjugation Coherent System. OFC Tu Thanh Nguyen, Sonia K. Boscolo, Abdallah A. I. Ali, Mingming Tan, Tingting Zhang, Shigehiro Takasaka, Ryuichi Sugizaki, Stylianos Sygletos, Andrew D. Ellis
2021	—	`conf`	Reduced Impact of Frequency Dithering on the Performance of High-Order Modulation Format Phase Conjugation. OFC Abdallah A. I. Ali, Tu Thanh Nguyen, Sonia K. Boscolo, Shigehiro Takasaka, Ryuichi Sugizaki, Andrew D. Ellis
2020	—	`conf`	Multicore Fiber Fabricated by Modified Cylinder Method. OFC Masanori Takahashi, Koichi Maeda, Ryuichi Sugizaki, Masayoshi Tsukamoto
2020	—	`conf`	Output Power Increase of Cladding Pumped 7-core EDFA by Using Mie Scattering. ECOC Shigehiro Takasaka, Koichi Maeda, Ryuichi Sugizaki, Yoshihiro Arashitani
2020	—	`conf`	Uncoupled 4-core Fibre with Ultra-low Loss and Low Inter Core Crosstalk. ECOC Masanori Takahashi, Koichi Maeda, Keiichi Aiso, Kazunori Mukasa, Ryuichi Sugizaki, Daiki Soma, Hidenori Takahashi, Takehiro Tsuritani, Miranda Mitrovic, Bera Pálsdóttir, Yoshihiro Arashitani
2019	—	`conf`	0.715 Pb/s Transmission Over 2, 009.6 km in 19-Core Cladding Pumped EDFA Amplified MCF Link. OFC Benjamin J. Puttnam, Georg Rademacher, Ruben S. Luis, Tobias A. Eriksson, Werner Klaus, Yoshinari Awaji, Naoya Wada, Koichi Maeda, Shigehiro Takasaka, Ryuichi Sugizaki
2019	—	`conf`	Cladding Pump Recycling Device for 19-Core EDFA. OFC Shigehiro Takasaka, Koichi Maeda, Kohei Kawasaki, Kazuaki Yoshioka, Ryuichi Sugizaki, Masayoshi Tsukamoto
2019	—	`conf`	Design of 5-Core Multicore Fibers with Optimized Fiber Design for Practical Applications. OECC/PSC Masanori Takahashi, Koichi Maeda, Ryuichi Sugizaki, Shinichi Arai, Masayoshi Tsukamoto
2019	—	`conf`	Field Test of Installed High-Density Optical Fiber Cable with Multi-Core Fibers toward Practical Deployment. OFC Takehiro Tsuritani, Daiki Soma, Yuta Wakayama, Yuichi Miyagawa, Mikoto Takahashi, Itsuro Morita, Koichi Maeda, Kohei Kawasaki, Toshikazu Matsuura, Masayoshi Tsukamoto, Ryuichi Sugizaki
2019	—	`conf`	Propagation Direction Interleaved Cladding Pumped 19-core EDFA. OECC/PSC Koichi Maeda, Shigehiro Takasaka, Kohei Kawasaki, Kazuaki Yoshioka, Ryuichi Sugizaki, Masayoshi Tsukamoto
2019	—	`conf`	Transmission and Crosstalk Measurements in MC-EDFA amplified 19-core link. OECC/PSC Benjamin J. Puttnam, Georg Rademacher, Ruben S. Luís, Tobias A. Eriksson, Werner Klaus, Yoshinari Awaji, Naoya Wada, Koichi Maeda, Shigehiro Takasaka, Ryuichi Sugizaki
2019	—	`conf`	WDM Amplification of One Pump HNLF Based Phase Sensitive Amplifier with Static Pump Phase Tuning. OFC Youichi Akasaka, Yinwen Cao, Shigehiro Takasaka, Kenji Yamauchi, Koichi Maeda, Haoqian Song, Ryuichi Sugizaki, Alan E. Willner, Tadashi Ikeuchi
2018	—	`conf`	Cladding Pump Recycling in 7-Core EDFA. ECOC Shigehiro Takasaka, Koichi Maeda, Kohei Kawasaki, Kazuaki Yoshioka, Ryuichi Sugizaki, Masayoshi Tsukamoto
2018	—	`conf`	EDF Length Dependence of Amplification Characteristics of Cladding Pumped 19-Core EDFA. OFC Shigehiro Takasaka, Koichi Maeda, Kohei Kawasaki, Kazuaki Yoshioka, Hajime Oshio, Ryuichi Sugizaki, Hidenori Takahashi, Takehiro Tsuritani, Masato Shiino
2018	—	`conf`	Experimental Demonstration of 1480nm Cladding Pumped Multicore EDFA. ECOC Keiichi Matsumoto, Hitoshi Takeshita, K. Maeda, Shigehiro Takasaka, Ryuichi Sugizaki, Emmanuel Le Taillandier de Gabory
2018	—	`conf`	Long-Haul MCF Transmission Using Full C+L-Band 19-Core Cladding-Pumped EDFA. ECOC Daiki Soma, Shohei Beppu, Koichi Maeda, Shigehiro Takasaka, Ryuichi Sugizaki, Hidenori Takahashi, Takehiro Tsuritani
2018	—	`conf`	Polarization-diversity In-line Phase Sensitive Amplifier for Simultaneous Amplification of Fiber-transmitted WDM PDM-16QAM Signals. OFC Takeshi Umeki, Takushi Kazama, Takayuki Kobayashi, Shigehiro Takasaka, Yasuhiro Okamura, Koji Enbutsu, Osamu Tadanaga, Hirokazu Takenouchi, Ryuichi Sugizaki, Atsushi Takada, Ryoichi Kasahara, Yutaka Miyamoto
2018	—	`conf`	Recent Progress and Outlook on Multicore Fiber for Practical Use. OFC Tomohiro Gonda, Katsunori Imamura, Kohei Kawasaki, Ryuichi Sugizaki, Shinichi Arai, Masayoshi Tsukamoto, Masato Shiino
2017	—	`conf`	56-Gbaud PAM4 Transmission over 2-km 125-μm-Cladding 4-Core Multicore Fibre for Data Centre Communications. ECOC Shohei Beppu, Hidenori Takahashi, Tomohiro Gonda, Katsunori Imamura, Kengo Watanabe, Ryuichi Sugizaki, Takehiro Tsuritani
2017	—	`conf`	Experimental demonstration of Raman-assisted phase sensitive amplifier with reduced ASE noise level and more than 25dB net gain. OFC Yinwen Cao, Ahmed Almaiman, Youichi Akasaka, Fatemeh Alishahi, Morteza Ziyadi, A. Mohajerin-Ariaei, Changjing Bao, Peicheng Liao, Ahmad Fallahpour, B. Shamee, Tadashi Ikeuchi, Shigehiro Takasaka, Ryuichi Sugizaki, Joseph D. Touch, Moshe Tur, Alan E. Willner
2017	—	`conf`	Four-fiber Fan-out for MCF with square lattice structure. OFC Kohei Kawasaki, Takeshi Sugimori, Kengo Watanabe, Tsunetoshi Saito, Ryuichi Sugizaki
2017	—	`conf`	Increase of Cladding Pump Power Efficiency by a 19-Core Erbium Doped Fibre Amplifier. ECOC Shigehiro Takasaka, Koichi Maeda, Kohei Kawasaki, Kazuaki Yoshioka, Hajime Oshio, Ryuichi Sugizaki, Yu Kawaguchi, Hidenori Takahashi, Takehiro Tsuritani, Masato Shiino
2017	—	`conf`	Three-stage quasi-phase-matched fiber optical parametric amplifier with flat 30-dB gain with 31-nm bandwidth. OFC Shigehiro Takasaka, Ryuichi Sugizaki
2016	—	`conf`	Polarization insensitive fiber optical parametric amplifier using a SBS suppressed diversity loop. OFC Shigehiro Takasaka, Ryuichi Sugizaki
2015	—	`conf`	51.1-Tbit/s MCF transmission over 2, 520 km using cladding pumped 7-core EDFAs. OFC Koki Takeshima, Takehiro Tsuritani, Yukihiro Tsuchida, Koichi Maeda, Tsunetoshi Saito, Kengo Watanabe, Toru Sasa, Katsunori Imamura, Ryuichi Sugizaki, Koji Igarashi, Itsuro Morita, Masatoshi Suzuki
2015	—	`conf`	Experimental demonstration of Raman-assisted phase sensitive amplifier with negligible gain/power fluctuation. ECOC Youichi Akasaka, Jeng-Yuan Yang, M. Sekiya, Tadashi Ikeuchi, Yinwen Cao, Ahmed Almaiman, Morteza Ziyadi, A. Mohajerin-Ariaei, Peicheng Liao, Alan E. Willner, Shigehiro Takasaka, Ryuichi Sugizaki
2015	—	`conf`	Experimental demonstration of optical signal level swapping and multi-level amplitude noise mitigation using three parametric gain regions. OFC Yinwen Cao, Morteza Ziyadi, Youichi Akasaka, Amirhossein Mohajerin Ariaei, Jeng-Yuan Yang, Ahmed Almaiman, Peicheng Liao, Shigehiro Takasaka, Ryuichi Sugizaki, Joseph D. Touch, M. Sekiya, Moshe Tur, Alan E. Willner
2015	—	`conf`	Experimental demonstration of tunable phase-noise mitigation and automatic frequency/phase locking for a 20-32 Gbaud QPSK homodyne receiver using optical mixing of nonlinearly generated higher harmonics. OFC A. Mohajerin-Ariaei, Morteza Ziyadi, M. R. Chitgarha, Ahmed Almaiman, Yinwen Cao, Youichi Akasaka, Jeng-Yuan Yang, M. Sekiya, Joseph D. Touch, Moshe Tur, Shigehiro Takasaka, Ryuichi Sugizaki, Carsten Langrock, Martin M. Fejer, Alan E. Willner
2014	—	`conf`	Bit-rate-tunable regeneration of 30-Gbaud QPSK data using phase quantization and amplitude saturation. ECOC A. Mohajerin-Ariaei, Youichi Akasaka, Jeng-Yuan Yang, M. R. Chitgarha, Morteza Ziyadi, Yinwen Cao, Ahmed Almaiman, Joseph D. Touch, Moshe Tur, M. Sekiya, Shigehiro Takasaka, Ryuichi Sugizaki, Carsten Langrock, Martin M. Fejer, Alan E. Willner
2014	J	`jnl`	Cross-Talk with Fluctuation in Heterogeneous Multicore Fibers. IEICE Trans. Commun. Takeshi Sugimori, Katsunori Imamura, Ryuichi Sugizaki
2014	J	`jnl`	Multicore EDFA for Space Division Multiplexing. IEICE Trans. Commun. Yukihiro Tsuchida, Koichi Maeda, Ryuichi Sugizaki
2014	—	`conf`	Multicore EDFA for space division multiplexing by utilizing cladding-pumped technology. OFC Yukihiro Tsuchida, Masateru Tadakuma, Ryuichi Sugizaki
2014	—	`conf`	Quasi phase-matched FOPA with 50 nm gain bandwidth using dispersion stable highly nonlinear fiber. OFC Shigehiro Takasaka, Yuki Taniguchi, Masanori Takahashi, Jiro Hiroshi, Masateru Tadakuma, Hiroshi Matsuura, Kohei Doi, Ryuichi Sugizaki
2014	—	`conf`	Wideband parametric processing with 1-dB bandwidth of 40nm using dispersion stable PM-HNLF. ECOC Shigehiro Takasaka, Yuki Taniguchi, Masanori Takahashi, Jiro Hiroshi, Masateru Tadakuma, Ryuichi Sugizaki
2013	—	`conf`	FOPA with flat 21-dB gain and NF less than 4-dB using alternately concatenated pump-phase shifters and HNLFs. OFC/NFOEC Shigehiro Takasaka, Yu Mimura, Hiroshi Matsuura, Masahito Morimoto, Masanori Takahashi, Ryuichi Sugizaki
2013	—	`conf`	Multicore EDFA for DWDM transmission in full C-band. OFC/NFOEC Yukihiro Tsuchida, Koichi Maeda, Kengo Watanabe, Toshiharu Ito, Kiyoshi Fukuchi, Masato Yoshida, Yu Mimura, Ryuichi Sugizaki, Masataka Nakazawa
2011	J	`jnl`	Photonic Crystal Multi-Core Fibers for Future High-Capacity Transmission Systems. IEICE Trans. Commun. Kazunori Mukasa, Katsunori Imamura, Yukihiro Tsuchida, Ryuichi Sugizaki