Kazuhide Nakajima

101 papers Journal 15Unranked 86

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	Deployment and Installation of Multi-Core Fiber Cable to Terrestrial Field. OFC Takayoshi Mori, Yusuke Yamada, Masashi Kikuchi, Kazutaka Noto, Takashi Matsui, Kazuhide Nakajima
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`	Fibre Fuse Propagation Characteristics and Threshold Power of Randomly Coupled Multi-Core Fibre. ECOC Ryota Imada, Taiji Sakamoto, Nobutomo Hanzawa, Kazuhide Nakajima
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`	Long-Haul SDM Transmission over 12-Coupled-Core Fiber with Semi-Real-Time $24\times 24$ MIMO Processing on FPGA. ECOC Manabu Arikawa, Kohei Hosokawa, Takahiro Odaqawa, Hironori Nakanishi, Takaya Maeda, Hiroshi Mukai, Kohki Shlbahara, Taiji Sakamoto, Ryota Imada, Kazuhide Nakajima, Yutaka Miyamoto
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`	Simplified Hybrid Core and Cladding Pumping Technique for Power-efficient Multi-core Fibre Amplifier. ECOC Taiji Sakamoto, Ryota Imada, Masaki Wada, Kazuhide Nakajima
2025	—	`conf`	Toward In-Fiber Integrated Optical Signal Control. OFC Yoko Yamashita, Masaki Wada, Kiyoshi Kamimura, Takayoshi Mori, Takashi Matsui, Kazuhide Nakajima
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`	Cryptographic Key Generation Using Conventional Single-Mode Fiber and an Optical Time Domain Reflectometer. OFC Yuto Sagae, Atsushi Nakamura, Takayoshi Mori, Yusuke Koshikiya, Kazuhide Nakajima
2024	—	`conf`	Design guideline for unrepeatered counter-propagating multi-core fiber link. OFC Takashi Matsui, Taiji Sakamoto, Masaki Wada, Kazuhide Nakajima
2024	—	`conf`	Energy-efficient Cladding-pumped Amplifier for Coupled Multi-core Fiber Transmission. OFC Taiji Sakamoto, Masaki Wada, Ryota Imada, Kazuhide Nakajima
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`	Characterization of Coupled Multi-core Fiber Nonlinearity using Modified CW-SPM Method. OFC Taiji Sakamoto, Ryota Imada, Kazuhide Nakajima
2023	J	`jnl`	Design of PLC E IEICE Electron. Express Han Wang, Takeshi Fujisawa, Takanori Sato, Masaki Wada, Takayoshi Mori, Taiji Sakamoto, Ryota Imada, Takashi Matsui, Kazuhide Nakajima, Kunimasa Saitoh
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`	Optical Link Characteristics and Long-Term Stability of High-density Multi-Core Fiber Cables Deployed in the Terrestrial Field. OFC Yusuke Yamada, Takayoshi Mori, Takashi Matsui, Masashi Kikuchi, Kazuhide Nakajima
2023	—	`conf`	Unique Bending Loss Properties and Design Consideration for Coupled Multi-core Fiber. OFC Ryota Imada, Taiji Sakamoto, Takayoshi Mori, Yusuke Yamada, Kazuhide Nakajima
2022	—	`conf`	A Novel Method for Evaluating Micro-Bending Sensitivity to Ensure Applicability to High-Density Optical Fiber Cable. OECC/PSC Masashi Kikuchi, Yuto Sagae, Yusuke Yamada, Takashi Matsui, Kazuhide Nakajima
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`	Mode-dependent Gain Reduction in Coupled Multi-core EDF with Smaller Core Pitch. OFC Ryota Imada, Taiji Sakamoto, Shinichi Aozasa, Kazuhide Nakajima
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	J	`jnl`	Scaling Optical Fiber Capacities. Proc. IEEE Peter J. Winzer, Kazuhide Nakajima, Cristian Antonelli
2022	—	`conf`	Silica-PLC based mode-dependent-loss equalizer for two LP mode transmission. OFC Takeshi Fujisawa, Takayoshi Mori, Junji Sakamoto, Yoko Yamashita, Taiji Sakamoto, Ryota Imada, Ryoto Ima, Takanori Sato, Kei Watanabe, Ryoichi Kasahara, Toshikazu Hashimoto, Kazuhide Nakajima, Kunimasa Saitoh
2022	—	`conf`	Stimulated Raman Scattering and Power-over-Fiber Property of Multi-core Fiber. OFC Kenji Kurokawa, Hiroyuki Iida, Nobutomo Hanzawa, Takaya Oguma, Yoko Yamashita, Takayoshi Mori, Takashi Matsui, Kazuhide Nakajima
2022	J	`jnl`	The Role of Parallelism in the Evolution of Optical Fiber Communication Systems. Proc. IEEE Werner Klaus, Peter J. Winzer, Kazuhide Nakajima
2022	J	`jnl`	Weakly Coupled Multicore Fiber Technology, Deployment, and Systems. Proc. IEEE Takashi Matsui, Peter L. Pondillo, Kazuhide Nakajima
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
2021	—	`conf`	Standard cladding diameter multi-core fiber technology. OFC Takashi Matsui, Yusuke Yamada, Yuto Sagae, Kazuhide Nakajima
2020	—	`conf`	4×56-GBaud PAM-4 SDM Transmission over 5.9-km 125-µm-Cladding MCF using III-V-on-Si DMLs. OFC Nikolaos-Panteleimon Pandelis Diamantopoulos, Hidetaka Nishi, Takuro Fujii, Kota Shikama, Takashi Matsui, Koji Takeda, Takaaki Kakitsuka, Kazuhide Nakajima, Shinji Matsuo
2020	—	`conf`	A Tunable Mode Divider Based on Wavelength Insensitive Coupler using Thermo-Optic Effect for Gain-Equalization in MDM Network. OFC Kodai Nakamura, Takeshi Fujisawa, Taiji Sakamoto, Takashi Matsui, Kazuhide Nakajima, Kunimasa Saitoh
2020	—	`conf`	Differential Modal Gain Reduction using a Void Inscribed in a Two-Mode-Erbium Doped Fiber. OFC Yoko Yamashita, Takashi Matsui, Masaki Wada, Shinichi Aozasa, Taiji Sakamoto, Kazuhide Nakajima
2020	J	`jnl`	Effective Area Enlarged Photonic Crystal Fiber with Quasi-Uniform Air-Hole Structure for High Power Transmission. IEICE Trans. Commun. Takashi Matsui, Kyozo Tsujikawa, Takehisa Okuda, Nobutomo Hanzawa, Yuto Sagae, Kazuhide Nakajima, Yasuyuki Fujiya, Kazuyuki Shiraki
2020	—	`conf`	Full C-Band and Power Efficient Coupled-Multi-Core Fiber Amplifier. OFC Masaki Wada, Taiji Sakamoto, Shinichi Aozasa, Ryota Imada, Takashi Yamamoto, Kazuhide Nakajima
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
2020	—	`conf`	Modal Amplitude and Phase Estimation of NFP of Six-Mode FMF Based on Artificial Neural Network with the Help of Grey-Wolf-Optimizer. ECOC Naoto Sugawara, Takeshi Fujisawa, Kodai Nakamura, Yusuke Sawada, Taiji Sakamoto, Takashi Matsui, Kazuhide Nakajima, Kunimasa Saitoh
2020	—	`conf`	Spatial Mode Dispersion Control in a Coupled MCF using High Density Cabling Parameters. OFC Yusuke Yamada, Taiji Sakamoto, Masaki Wada, Saki Nozoe, Yuto Sagae, Yoko Yamashita, Hisashi Izumita, Kazuhide Nakajima, Hiroaki Tanioka
2020	J	`jnl`	Ultra-Low Crosstalk Multi-Core Fiber with Standard 125-μm Cladding Diameter for 10, 000km-Class Long-Haul Transmission. IEICE Trans. Commun. Yuto Sagae, Takashi Matsui, Taiji Sakamoto, Kazuhide Nakajima
2020	—	`conf`	Wavefront-Matching-Method-Designed Six-Mode-Exchanger Based on Grating-Like Waveguide on Silica-PLC Platform. OFC Takeshi Fujisawa, Taiji Sakamoto, Masashi Miyata, Takashi Matsui, Toshikazu Hashimoto, Ryoichi Kasahara, Kazuhide Nakajima, Kunimasa Saitoh
2019	—	`conf`	3-Mode PLC-Based Mode Dependent Loss Equalizer in MDM Transmission. OECC/PSC Naoto Sugawara, Misa Kudo, Takeshi Fujisawa, Taiji Sakamoto, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima, Kunimasa Saitoh
2019	—	`conf`	A Broadband Mode Divider with Arbitrary Branching Ratio Based on Wavelength-Insensitive Coupler. OFC Misa Kudo, Takeshi Fujisawa, Taiji Sakamoto, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima, Kunimasa Saitoh
2019	—	`conf`	A Design of Low MDL Scrambling-type PLC 6-mode Multiplexer. OECC/PSC Motoki Shirata, Misa Kudo, Takeshi Fujisawa, Taiji Sakamoto, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima, Kunimasa Saitoh
2019	—	`conf`	Design of hole-assisted fiber based fiber fuse terminator considering area of melted region. OECC/PSC Kyozo Tsujikawa, Nobutomo Hanzawa, Kenji Kurokawa, Saki Nozoe, Takashi Matsui, Kazuhide Nakajima
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`	High Spatial Density 6-Mode 7-Core Multicore L-Band Fiber Amplifier. OFC Yongmin Jung, Masaki Wada, Taiji Sakamoto, Saurabh Jain, Ian A. Davidson, Pranabesh Barua, John R. Hayes, Shaif-Ul Alam, Kazuhide Nakajima, David J. Richardson
2019	—	`conf`	Interoperability and High-Capacity Transmission using Multi-Core Fiber with Standard Cladding Diameter. OFC Takashi Matsui, Kazuhide Nakajima
2019	—	`conf`	L-Band Randomly-Coupled 12 Core Erbium Doped Fiber Amplifier. OFC Masaki Wada, Taiji Sakamoto, Shinichi Aozasa, Takashi Yamamoto, Kazuhide Nakajima
2019	—	`conf`	Low mode dependent gain few-mode EDFA with fiber based mode scrambler. OECC/PSC Masaki Wada, Taiji Sakamoto, Takashi Yamamoto, Shinichi Aozasa, Kazuhide Nakajima
2019	—	`conf`	Low-Loss and Fabrication-Tolerant Si Four-Wavelength Multiplexer using Higher-Order Mode for 100/400GbE. OFC Junya Takano, Takeshi Fujisawa, Takanori Sato, Yusuke Sawada, Taiji Sakamoto, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima, Kunimasa Saitoh
2019	—	`conf`	Multi-Functional Multi-Core Fiber with a Low-Latency Core and Conventional Silica Cores. OFC Yuto Sagae, Takashi Matsui, Yoko Yamashita, Masaki Wada, Taiji Sakamoto, Kyozo Tsujikawa, Kazuhide Nakajima
2019	—	`conf`	Progress on SDM Fiber Research in Japan. OFC Kazuhide Nakajima, Takashi Matsui, Taiji Sakamoto, Saki Nozoe, Yukihiro Goto
2019	—	`conf`	Ultra-Low-XT Multi-Core Fiber with Standard 125-μm Cladding for Long-Haul Transmission. OECC/PSC Yuto Sagae, Takashi Matsui, Kazuhide Nakajima
2018	—	`conf`	120 Spatial Channel Few-Mode Multi-Core Fibre with Relative Core Multiplicity Factor Exceeding 100. ECOC Taiji Sakamoto, Kunimasa Saitoh, Shota Saitoh, Yoshiteru Abe, Katsuhiro Takenaga, Azusa Urushibara, Masaki Wada, Takashi Matsui, Kazuhiko Aikawa, Kazuhide Nakajima
2018	J	`jnl`	A Review of PLC-Based Broadband Two-Mode Multi/Demultiplexer Designed by Wavefront Matching Method. IEICE Trans. Electron. Eri Taguchi, Takeshi Fujisawa, Yoko Yamashita, Shuntaro Makino, Nobutomo Hanzawa, Taiji Sakamoto, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima, Fumihiko Yamamoto, Kunimasa Saitoh
2018	—	`conf`	Crosstalk Reduction in Multi-Core Fiber Using Uniform Twist. ECOC Shinichi Aozasa, Kyozo Tsujikawa, Taiji Sakamoto, Saki Nozoe, Kazuhide Nakajima
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`	Energy-Efficient 400G SDM Transmitter Based on DMT and a 1.3-sµm Membrane DML-Array-on-Si. ECOC Nikolaos-Panteleimon Diamantopoulos, Kota Shikama, Hidetaka Nishi, Takuro Fujii, Toshiki Kishi, Koji Takeda, Yoshiteru Abe, Takashi Matsui, Takaaki Kakitsuka, Hiroshi Fukuda, Kazuhide Nakajima, Shinji Matsuo
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`	Multicore-Fiber LC Receptacle with Compact Fan-in/Fan-out for Short-Reach Transceivers. OFC Kota Shikama, Yoshiteru Abe, Toshiki Kishi, Koji Takeda, Takuro Fujii, Hidetaka Nishi, Takashi Matsui, Atsushi Aratake, Kazuhide Nakajima, Shinji Matsuo
2018	—	`conf`	Power Efficient C-L Band Simultaneous Amplification Technique Using Alternately Mode Assigned Multi-Core EDF. ECOC Masaki Wada, Taiji Sakamoto, Shinichi Aozasa, Takashi Yamamoto, Kazuhide Nakajima
2018	—	`conf`	Recent Progress on SDM Amplifiers. ECOC Masaki Wada, Taiji Sakamoto, Shinichi Aozasa, Takashi Yamamoto, Kazuhide Nakajima
2018	—	`conf`	Solid Type Low-Latency Single-Mode Fiber with Large Effective Area and Low Loss. OFC Yuto Sagae, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima
2017	—	`conf`	125 μm-cladding 2LP-mode and 4-core Multi-core Fibre with Air-hole Structure for Low Crosstalk in C+L Band. ECOC Saki Nozoe, Taiji Sakamoto, Takashi Matsui, Yoshimichi Amma, Katsuhiro Takenaga, Yoshiteru Abe, Kyozo Tsujikawa, Shinichi Aozasa, Kazuhiko Aikawa, Kazuhide Nakajima
2017	—	`conf`	Bending radius dependence of spatial mode dispersion in randomly coupled multi-core fiber. OFC Shinichi Aozasa, Taiji Sakamoto, Saki Nozoe, Yuto Sagae, Masaki Wada, Takayoshi Mori, Kyozo Tsujikawa, Takashi Yamamoto, Kazuhide Nakajima
2017	—	`conf`	Characteristic of Splicing Misalignment Induced Mode Dependent Loss for Coupled Multi-core Fibre. ECOC Taiji Sakamoto, Takayoshi Mori, Masaki Wada, A. Urushibara, Takashi Yamamoto, Shinichi Aozasa, Saki Nozoe, Yuto Sagae, Kyozo Tsujikawa, Kazuhide Nakajima
2017	—	`conf`	Coupled 2-LP 6-core EDFA with 125 μm cladding diameter. OFC Masaki Wada, Taiji Sakamoto, Shinichi Aozasa, Takayoshi Mori, Takashi Yamamoto, Kazuhide Nakajima
2017	—	`conf`	Coupled single-mode multi-core fiber design for long-haul MIMO transmission system. OFC Taiji Sakamoto, Takayoshi Mori, Masaki Wada, Takashi Yamamoto, Kazuhide Nakajima
2017	—	`conf`	Experimental verification of mode-dependent loss reduction by mode coupling using long-period grating. OFC A. Hasegawa-Urushibara, Takayoshi Mori, Taiji Sakamoto, Masaki Wada, Takashi Yamamoto, Kazuhide Nakajima
2017	—	`conf`	Full C-band Low Mode Dependent and Flat Gain Amplifier using Cladding Pumped Randomly Coupled 12-core EDF. ECOC Masaki Wada, Taiji Sakamoto, Takashi Yamamoto, Shinichi Aozasa, Saki Nozoe, Yuto Sagae, Kyozo Tsujikawa, Kazuhide Nakajima
2017	—	`conf`	Gain-Clamped 4-LP mode Erbium Doped Fibre Amplifier with Low Modal Gain Variation. ECOC Masaki Wada, Shinichi Aozasa, Taiji Sakamoto, Takayoshi Mori, Takashi Yamamoto, Kazuhide Nakajima
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`	Low crosstalk 125 μm-cladding multi-core fiber with limited air-holes fabricated with over-cladding bundled rods technique. OFC Saki Nozoe, Ryohei Fukumoto, Taiji Sakamoto, Takashi Matsui, Yoshimichi Amma, Katsuhiro Takenaga, Kyozo Tsujikawa, Shinichi Aozasa, Kazuhiko Aikawa, Kazuhide Nakajima
2017	—	`conf`	Mach-Zehnder Mode/Wavelength (De)Multiplexer for WDM/MDM Optical Transmission. ECOC Shun Ohta, Takeshi Fujisawa, Shuntaro Makino, Taiji Sakamoto, Takashi Matsui, Kyozo Tsujikawa, Kazuhide Nakajima, Kunimasa Saitoh
2017	J	`jnl`	Multi-Core Fiber Technology: Next Generation Optical Communication Strategy. IEEE Commun. Stand. Mag. Kazuhide Nakajima, Takashi Matsui, Kotaro Saito, Taiji Sakamoto, Noriyuki Araki
2017	—	`conf`	One chip, PLC three-mode exchanger based on symmetric and asymmetric directional couplers with integrated mode rotator. OFC Takeshi Fujisawa, Eri Taguchi, Taiji Sakamoto, Takashi Matsui, Yoko Yamashita, Kyozo Tsujikawa, Kazuhide Nakajima, Kunimasa Saitoh
2017	—	`conf`	Randomly-coupled single-mode 12-core fiber with highest core density. OFC Taiji Sakamoto, Shinichi Aozasa, Takayoshi Mori, Masaki Wada, Takashi Yamamoto, Saki Nozoe, Yuto Sagae, Kyozo Tsujikawa, Kazuhide Nakajima
2017	—	`conf`	Scrambling-type three-mode multiplexer based on cascaded Y-branch waveguide with integrated mode rotator on PLC platform. OFC Takeshi Fujisawa, Yoko Yamashita, Taiji Sakamoto, Takashi Matsui, Shuntaro Makino, Kyozo Tsujikawa, Kazuhide Nakajima, Kunimasa Saitoh
2017	—	`conf`	Strongly-coupled five-mode ring-core fiber for MDM transmission with MIMO DSP. OFC Takayoshi Mori, Taiji Sakamoto, Masaki Wada, A. Urushibara, Takashi Yamamoto, Kazuhide Nakajima
2017	—	`conf`	Unrepeated LP02 Mode Transmission over 205 km Few-mode Fibre with Selective Mode Excitation. ECOC Takayoshi Mori, Taiji Sakamoto, Masaki Wada, Azusa Urushibara, Takashi Yamamoto, Kazuhide Nakajima
2017	—	`conf`	Zero-Dispersion Wavelength Optimized Single-Mode Multi-Core Fiber for High-Speed Gigabit Ethernet. ECOC Takashi Matsui, Taiji Sakamoto, Kazuhide Nakajima
2016	—	`conf`	Coupled multi-core fiber design with low spatial mode dispersion coefficient over wide wavelength range. OFC Taiji Sakamoto, Takayoshi Mori, Masaki Wada, Takashi Yamamoto, Kazuhide Nakajima
2016	—	`conf`	Differential modal gain reduction of L-band 5-spatial mode EDFA with depressed core structure. OFC Masaki Wada, Taiji Sakamoto, Shinichi Aozasa, Takayoshi Mori, Takashi Yamamoto, Kazuhide Nakajima
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`	Side-view based angle alignment technique for multi-core fiber. OFC Kotaro Saito, Taiji Sakamoto, Takashi Matsui, Kazuhide Nakajima, Toshio Kurashima
2016	—	`conf`	Space division multiplexing technology: Next generation optical communication strategy. Kaleidoscope Kazuhide Nakajima, Takashi Matsui, Kotaro Saito, Taiji Sakamoto, Noriyuki Araki
2016	—	`conf`	Strongly-coupled two-LP-mode ring-core fiber with optimized index profile considering S-bend model. OFC Takayoshi Mori, Taiji Sakamoto, Masaki Wada, A. Urushibara, Takashi Yamamoto, Kazuhide Nakajima
2015	—	`conf`	Design of 125 μm cladding multi-core fiber with full-band compatibility to conventional single-mode fiber. ECOC Takashi Matsui, Taiji Sakamoto, Yukihiro Goto, Kotaro Saito, Kazuhide Nakajima, Fumihiko Yamamoto, Toshio Kurashima
2015	—	`conf`	Few-mode multi-core fibre with highest core multiplicity factor. ECOC Taiji Sakamoto, Takashi Matsui, Kunimasa Saitoh, Shota Saitoh, Katsuhiro Takenaga, Shoichiro Matsuo, Yuki Tobita, Nobutomo Hanzawa, Kazuhide Nakajima, Fumihiko Yamamoto
2015	—	`conf`	High-spatial-multiplicity multi-core fibres for future dense space-division-multiplexing system. ECOC Shoichiro Matsuo, Katsuhiro Takenaga, Kunimasa Saitoh, Kazuhide Nakajima, Yutaka Miyamoto, Toshio Morioka
2015	—	`conf`	Measurement of inter-core crosstalk in few-mode multicore fibre. ECOC S. Saitoh, Yusuke Sasaki, Katsuhiro Takenaga, M. Ohashi, Kunimasa Saitoh, Kazuhide Nakajima, Shinji Matsuo
2015	—	`conf`	Multi-core fiber based pluggable add/drop link using rotational connector. OFC Kotaro Saito, Takashi Matsui, Kazuhide Nakajima, Taiji Sakamoto, Fumihiko Yamamoto, Toshio Kurashima
2015	J	`jnl`	Transmission media for an SDM-based optical communication system. IEEE Commun. Mag. Kazuhide Nakajima, Pierre Sillard, David J. Richardson, Ming-Jun Li, René-Jean Essiambre, Shoichiro Matsuo
2014	J	`jnl`	Petabit/s Optical Transmission Using Multicore Space-Division-Multiplexing. IEICE Trans. Commun. Hidehiko Takara, Tetsuo Takahashi, Kazuhide Nakajima, Yutaka Miyamoto
2011	J	`jnl`	Bending-Loss Insensitive Fiber with Hole-Assisted Structure. IEICE Trans. Commun. Kazuhide Nakajima, Tomoya Shimizu, Takashi Matsui, Chisato Fukai, Toshio Kurashima
2009	J	`jnl`	Applicability of Large Effective Area PCF to DRA Transmission. IEICE Trans. Commun. Chisato Fukai, Kazuhide Nakajima, Takashi Matsui
2009	J	`jnl`	Wide-Band Dispersion Compensation for PCF with Uniform Air Hole Structure. IEICE Trans. Commun. Kazuhide Nakajima, Takashi Matsui, Chisato Fukai
2007	J	`jnl`	10 Gb/s WDM Transmission at 1064 and 1550 nm over 24 km Photonic Crystal Fiber with Negative Power Penalties. IEICE Trans. Commun. Kenji Kurokawa, Kyozo Tsujikawa, Katsusuke Tajima, Kazuhide Nakajima, Izumi Sankawa
2007	J	`jnl`	Visible to infrared high-speed WDM transmission over PCF. IEICE Electron. Express Koji Ieda, Kenji Kurokawa, Katsusuke Tajima, Kazuhide Nakajima