Kohki Shibahara

43 papers C 1Journal 2Unranked 39

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	Evaluation Method of Adaptive SDM-MIMO Equaliser Based on the Quantitative Coupled Channel Dynamics. ECOC Megumi Hoshi, Kohki Shibahara, Akira Kawai, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Kazuhide Nakajima, Takayuki Kobayashi, Yutaka Miyamoto
2025	—	`conf`	Full C-band 3317-km 12-Coupled-Core-Fiber Transmission with 266.2-Tbps Capacity Using Field-Installed Fiber-Optic Cable. OFC Kohki Shibahara, Akira Kawai, Megumi Hoshi, Masanori Nakamura, Takayuki Kobayashi, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Munehiko Nagatani, Hitoshi Wakita, Yuta Shiratori, Hiroshi Yamazaki, Hiroyuki Takahashi, Soichi Endo, Takemi Hasegawa, Koichi Maeda, Shigehiro Takasaka, Ryo Nagase, Yutaka Miyamoto
2025	—	`conf`	Inter-Core Crosstalk Estimation in Uni- and Bi-Directional Multiband WDM Transmissions. ECOC Kosuke Kimura, Shimpei Shimizu, Megumi Hoshi, Kohki Shibahara, Akira Kawai, Masanori Nakamura, Fukutaro Hamaoka, Takayuki Kobayashi, Yutaka Miyamoto
2025	J	`jnl`	Programmable Photonic Unitary Processor Enables Parametrized Differentiable Long-Haul Spatial Division Multiplexed Transmission. CoRR Mitsumasa Nakajima, Kohki Shibahara, Kohei Ikeda, Akira Kawai, Masaya Notomi, Yutaka Miyamoto, Toshikazu Hashimoto
2025	—	`conf`	Real-Time SDM-MIMO Transmission with 12-Coupled SDM Channels Over Field-Installed Fibre Cable. ECOC Kohki Shibahara, Akira Kawai, Megumi Hoshi, Manabu Arikawa, Kohei Hosokawa, Takaya Maeda, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Soichi Endo, Takemi Hasegawa, Koichi Maeda, Shigehiro Takasaka, Ryo Nagase, Takayuki Kobayashi, Yutaka Miyamoto
2025	—	`conf`	SDM Transmission Technologies Enabling Over-10-Tb/S SDM-MIMO Signals. ECOC Akira Kawai, Kohki Shibahara, Masanori Nakamura, Megumi Hoshi, Takayuki Kobayashi, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Munehiko Nagatani, Hitoshi Wakita, Yuta Shiratori, Hiroshi Yamazaki, Hiroyuki Takahashi, Soichi Endo, Takemi Hasegawa, Koichi Maeda, Shigehiro Takasaka, Ryo Nagase, Yutaka Miyamoto
2025	—	`conf`	Vertically Coded Probabilistic Shaping Enabling MDL-Tolerant Over-14.5- Tb/S/λ Spatial MIMO Transmission. ECOC Akira Kawai, Kohki Shibahara, Masanori Nakamura, Megumi Hoshi, Takayuki Kobayashi, Ryota Imada, Takayoshi Mori, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Munehiko Nagatani, Hitoshi Wakita, Yuta Shiratori, Hiroshi Yamazaki, Hiroyuki Takahashi, Soichi Endo, Takemi Hasegawa, Ryo Nagase, Yutaka Miyamoto
2024	—	`conf`	Low-Complexity 4D×D MIMO Equalizer Enabling 2.6-Tb/s/λ SDM Signal Reception over Dynamic Four-Coupled-Core Cabled Transmission Line. OFC Akira Kawai, Kohki Shibahara, Masanori Nakamura, Takayuki Kobayashi, Takayoshi Mori, Ryota Imada, Taiji Sakamoto, Yusuke Yamada, Kazuhide Nakajima, Yutaka Miyamoto
2024	—	`conf`	Transoceanic-Class WDM/SDM Transmission of PDM-QPSK Signals over Coupled 12-Core Fiber. OFC Manabu Arikawa, Kohki Shibahara, Taiji Sakamoto, Ryota Imada, Kazuhide Nakajima, Yutaka Miyamoto, Emmanuel Le Taillandier de Gabory
2023	—	`conf`	10-spatial-mode 1300-km Transmission over 6-LP Graded Index Few-Mode Fiber with 36-ns Modal Dispersion. OFC Kohki Shibahara, Megumi Hoshi, Yutaka Miyamoto
2023	—	`conf`	Long-Haul Unidirectional Transmission over Weakly-Coupled MCF with Distance-Insensitive Inter-Core Skew Spread. OFC Kohki Shibahara, Megumi Hoshi, Takashi Matsui, Takayoshi Mori, Kazuhide Nakajima, Yutaka Miyamoto
2023	—	`conf`	Remote Digital Holographic Characterization of a 75.2 km Few-Mode Fiber without Reference Wave Transfer. OFC Akira Kawai, Shimpei Shimizu, Kohki Shibahara, Takayuki Kobayashi, Yutaka Miyamoto
2022	J	`jnl`	Few-Mode Fiber Technology, Deployments, and Systems. Proc. IEEE Pierre Sillard, Kaoutar Benyahya, Daiki Soma, Guillaume Labroille, Pu Jian, Koji Igarashi, Roland Ryf, Nicolas K. Fontaine, Georg Rademacher, Kohki Shibahara
2022	—	`conf`	Mitigation of Intercore Crosstalk Impact with PPLN-based Optical Spectrum Inversion. OECC/PSC Megumi Hoshi, Kohki Shibahara, Shimpei Shimizu, Takayuki Kobayashi, Takeshi Umeki, Takushi Kazama, Kei Watanabe, Takayoshi Mori, Yusuke Yamada, Kazuhide Nakajima, Yutaka Miyamoto
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`	SDM-TDM Reception Based on MIMO Carrier Phase Recovery Technique for Scalable SDM Transmission. OFC Kohki Shibahara, Megumi Hoshi, Yutaka Miyamoto
2021	—	`conf`	High Spatial Channel Count Multicore SDM Amplifiers. OFC Saurabh Jain, Taiji Sakamoto, Yongmin Jung, Pranabesh Barua, Ian A. Davidson, John R. Hayes, Kohki Shibahara, T. Mizuno, Yutaka Miyamoto, Kazuhide Nakajima, David J. Richardson
2020	—	`conf`	High Spatial Density 6-Mode 7-Core Fibre Amplifier for C-band Operation. ECOC Saurabh Jain, Taiji Sakamoto, Yongmin Jung, Ian A. Davidson, Pranabesh Barua, John R. Hayes, Kohki Shibahara, Takayuki Mizuno, Yutaka Miyamoto, Kazuhide Nakajima, David J. Richardson
2020	—	`conf`	Long-Haul DMD-Unmanaged 6-Mode-Multiplexed Transmission Employing Cyclic Mode-Group Permutation. OFC Kohki Shibahara, Takayuki Mizuno, Hirotaka Ono, Kazuhide Nakajima, Yutaka Miyamoto
2019	—	`conf`	Full C-Band 3060-km DMD-Unmanaged 3-Mode Transmission with 40.2-Tb/s Capacity using Cyclic Mode Permutation. OFC Kohki Shibahara, Takayuki Mizuno, Hiroto Kawakami, Takayuki Kobayashi, Masanori Nakamura, Kota Shikama, Kazuhide Nakajima, Yutaka Miyamoto
2019	—	`conf`	Long-Haul SDM Transmission Using Mode Division Multiplexing. OECC/PSC Kohki Shibahara, Takayuki Mizuno, Takayuki Kobayashi, Yutaka Miyamoto
2019	—	`conf`	Mode-Division Multiplexing Systems for High-Capacity Optical Transport Network. OFC Yutaka Miyamoto, Kohki Shibahara, Takayuki Mizuno, Takayuki Kobayashi
2018	—	`conf`	DMD-Unmanaged Long-Haul SDM Transmission Over 2500-km 12-core × 3-mode MC-FMF and 6300-km 3-mode FMF Employing Intermodal Interference Cancelling Technique. OFC Kohki Shibahara, Takayuki Mizuno, L. Doowhan, Yutaka Miyamoto, Hirotaka Ono, Kazuhide Nakajima, S. Saitoh, Katsuhiro Takenaga, Kunimasa Saitoh
2018	—	`conf`	Iterative Unreplicated Parallel Interference Canceler for MDL-Tolerant Dense SDM 12-Core×3-Mode Transmission Over 3000 km. ECOC Kohki Shibahara, Takayuki Mizuno, Doowhan Lee, Yutaka Miyamoto, Hirotaka Ono, Kazuhide Nakajima, Yoshimichi Amma, Katsuhiro Takenaga, Kunimasa Saitoh
2018	—	`conf`	Long-Distance PDM-32QAM 3-Mode Fibre Transmission Over 1000 km Using Hybrid Multicore EDFA/Raman Repeated Amplification with Cyclic Mode Permutation. ECOC Takayuki Mizuno, Kohki Shibahara, Hirotaka Ono, Yutaka Miyamoto
2017	—	`conf`	1-Pb/s (32 SDM/46 WDM/768 Gb/s) C-band dense SDM transmission over 205.6-km of single-mode heterogeneous multi-core fiber using 96-Gbaud PDM-16QAM channels. OFC Takayuki Kobayashi, Masanori Nakamura, Fukutaro Hamaoka, Kohki Shibahara, Takayuki Mizuno, Akihide Sano, H. Kawakami, Akira Isoda, Munehiko Nagatani, Hiroshi Yamazaki, Yutaka Miyamoto, Yoshimichi Amma, Yusuke Sasaki, Katsuhiro Takenaga, Kazuhiko Aikawa, Kunimasa Saitoh, Yongmin Jung, David J. Richardson, Klaus Pulverer, Marc Bohn, Md. Nooruzzaman, Toshio Morioka
2017	—	`—`	Advanced Signal Processing for Fiber-Optic Communication Systems Scaling Capacity Beyond 100 Tb/s. Kohki Shibahara
2017	—	`conf`	Crosstalk Analysis of 32-Core Dense Space Division Multiplexed System for Higher Order Modulation Formats Using an Integrated Cladding-Pumped Amplifier. ECOC Carlos Castro, Saurabh Jain, Yongmin Jung, Erik De Man, Stefano Calabrò, Klaus Pulverer, Marc Bohn, John R. Hayes, Shaif-Ul Alam, David J. Richardson, Yusuke Sasaki, Takayuki Mizuno, Kohki Shibahara, Takayuki Kobayashi, Yutaka Miyamoto, Toshio Morioka, Werner Rosenkranz
2017	—	`conf`	First Demonstration of Single-Mode MCF Transport Network with Crosstalk-Aware In-Service Optical Channel Control. ECOC Klaus Pulverer, Takafumi Tanaka, Ulrich Häbel, Carlos Castro, Marc Bohn, Takayuki Mizuno, Akira Isoda, Kohki Shibahara, Tetsuro Inui, Yutaka Miyamoto, Yusuke Sasaki, Yoshimichi Amma, Kazuhiko Aikawa, Saurabh Jain, Yongmin Jung, Shaif-Ul Alam, David J. Richardson, Md. Nooruzzaman, Toshio Morioka
2017	—	`conf`	High Spatial Density Six-mode Seven-core Fibre for Repeated Dense SDM Transmission. ECOC Taiji Sakamoto, Kunimasa Saitoh, Shota Saitoh, Kohki Shibahara, Masaki Wada, Yoshiteru Abe, Azusa Urushibara, Katsuhiro Takenaga, Takayuki Mizuno, Takashi Matsui, Kazuhiko Aikawa, Yutaka Miyamoto, Kazuhide Nakajima
2017	—	`conf`	Hybrid Cladding-pumped EDFA/Raman for SDM Transmission Systems Using Core-by-core Gain Control Scheme. ECOC Takayuki Mizuno, Akira Isoda, Kohki Shibahara, Hirotaka Ono, Mitsunori Fukutoku, Yutaka Miyamoto
2017	—	`conf`	Improved cladding-pumped 32-core multicore fiber amplifier. ECOC Saurabh Jain, Takayuki Mizuno, Yongmin Jung, Akira Isoda, Kohki Shibahara, John R. Hayes, Yusuke Sasaki, Katsuhiro Takenaga, Yutaka Miyamoto, Shaif-Ul Alam, David J. Richardson
2017	—	`conf`	In-service crosstalk monitoring for dense space division multiplexed multi-core fiber transmission systems. OFC Takayuki Mizuno, Akira Isoda, Kohki Shibahara, Yutaka Miyamoto, Saurabh Jain, Shaif-Ul Alam, David J. Richardson, Carlos Castro, Klaus Pulverer, Yusuke Sasaki, Yoshimichi Amma, Katsuhiro Takenaga, Kazuhiko Aikawa, Toshio Morioka
2017	—	`conf`	LDPC-coded FMF Transmission Employing Unreplicated Successive Interference Cancellation for MDL-Impact Mitigation. ECOC Kohki Shibahara, Takayuki Mizuno, Yutaka Miyamoto
2017	—	`conf`	Signal processing techniques for DMD and MDL mitigation in dense SDM transmissions. OFC Kohki Shibahara, Takayuki Mizuno, D. Lee, Yutaka Miyamoto
2016	—	`conf`	32-core Dense SDM unidirectional transmission of PDM-16QAM signals over 1600 km using crosstalk-managed single-mode heterogeneous multicore transmission line. OFC Takayuki Mizuno, Kohki Shibahara, Hirotaka Ono, Y. Abe, Yutaka Miyamoto, Feihong Ye, Toshio Morioka, Yusuke Sasaki, Yoshimichi Amma, Katsuhiro Takenaga, S. Matsuo, Kazuhiko Aikawa, Kunimasa Saitoh, Yongmin Jung, David J. Richardson, Klaus Pulverer, Marc Bohn, Makoto Yamada
2016	—	`conf`	Low-loss and Low-DMD few-mode multi-core fiber with highest core multiplicity factor. OFC Taiji Sakamoto, Takashi Matsui, Kunimasa Saitoh, S. Saitoh, Katsuhiro Takenaga, Takayuki Mizuno, Yoshiteru Abe, Kohki Shibahara, Yuki Tobita, Shinji Matsuo, Kazuhiko Aikawa, Shinichi Aozasa, Kazuhide Nakajima, Yutaka Miyamoto
2016	—	`conf`	Space-time coding-assisted transmission for mitigation of MDL impact on mode-division multiplexed signals. OFC Kohki Shibahara, Takayuki Mizuno, Hidehiko Takara, H. Kawakami, D. Lee, Yutaka Miyamoto, S. Matsuo, Kunimasa Saitoh, Makoto Yamada
2015	C	`conf`	A Practical channel modeling method for few-mode optical fiber communication systems. APCC Doohwan Lee, Kohki Shibahara, Tadao Nakagawa, Yutaka Miyamoto, Chitradeep Majumdar
2015	—	`conf`	Adaptive MIMO equalization for few-mode fiber transmission with various differential mode delays. ECOC D. Lee, Kohki Shibahara, Takayuki Kobayashi, Takayuki Mizuno, Hidehiko Takara, Akihide Sano, Hiroto Kawakami, T. Nakagawa, Yutaka Miyamoto
2015	—	`conf`	Dense SDM (12-core × 3-mode) transmission over 527 km with 33.2-ns mode-dispersion employing low-complexity parallel MIMO frequency-domain equalization. OFC Kohki Shibahara, Takayuki Mizuno, Hidehiko Takara, Akihide Sano, H. Kawakami, D. Lee, Yutaka Miyamoto, Hirotaka Ono, Manabu Oguma, Yoshiteru Abe, Takayuki Kobayashi, Takashi Matsui, Ryohei Fukumoto, Yoshimichi Amma, T. Hosokawa, S. Matsuo, Kunimasa Saitoh, H. Nasu, Toshio Morioka
2015	—	`conf`	Mode dependent loss equaliser and impact of MDL on PDM-16QAM few-mode fibre transmission. ECOC T. Mizuno, H. Takara, Kohki Shibahara, Yutaka Miyamoto, Manabu Oguma, Hirotaka Ono, Y. Abe, Takashi Matsui, S. Matsuo, Kunimasa Saitoh, Y. Kimura
2015	—	`conf`	Multi-stage successive interference cancellation for spectrally-efficient super-Nyquist transmission. ECOC Kohki Shibahara, Akira Masuda, Shingo Kawai, Mitsunori Fukutoku