Takemi Hasegawa

According to our database, Takemi Hasegawa authored at least 41 papers between 2016 and 2026.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of two.

2026

Mass Production of Two-core Fiber and Applicability for Pb/s Submarine Cable.

Yuki Kawaguchi, Hirotaka Sakuma, Tetsuya Haruna, Tetsuya Hayashi, Hideki Yamaguchi, Masaaki Hirano, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2026

2025

Full C-band 3317-km 12-Coupled-Core-Fiber Transmission with 266.2-Tbps Capacity Using Field-Installed Fiber-Optic Cable.

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

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

Ultra-low Loss 0.1397dB/km Silica-core Single-mode Fiber.

Shin Sato, Yuki Kawaguchi, Hirotaka Sakuma, Tetsuya Haruna, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

Behavior of Inter-core Crosstalk of Two-core Fiber in Submarine Cable.

Yuki Kawaguchi, Hirotaka Sakuma, Tetsuya Haruna, Takemi Hasegawa, Keisuke Yasuhara, Juan Carlos Aquino, Daishi Masuda

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

Macro- and Micro-Bending Performances of Uncoupled 200 μm-Coated Multi-Core Fibers.

Yuki Kawaguchi, Hirotaka Sakuma, Tetsuya Haruna, Tetsuya Hayashi, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

Single Spectrum Cutoff Wavelength Measurement Method for Multicore Fibers.

Elaine Chou, Takemi Hasegawa, Tetsuya Hayashi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

Cavity-Assisted Pump Recycling for High-Efficiency Cladding-Pumped Erbium-Doped Fiber Amplifiers.

Haoshuo Chen, Roland Ryf, Nicolas K. Fontaine, Xiaonan Xu, Lauren Dallachiesa, Mikael Mazur, Hirotaka Sakuma, Takemi Hasegawa, Tetsuya Hayashi, David T. Neilson

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

Reconfigurable Multi-Port Multi-Wavelength Coherent Receiver.

Haoshuo Chen, Nicolas K. Fontaine, Roland Ryf, Giammarco Di Sciullo, Lauren Dallachiesa, Kwangwoong Kim, C. Tran, Mikael Mazur, Jesse E. Xu, René-Jean Simsarian, René-Jean Essiambre, T. Kawashima, T. Oonuma, S. Kawakami, Takemi Hasegawa, Tetsuya Hayashi, Cristian Antonelli, David T. Neilson

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2025

Real-Time SDM-MIMO Transmission with 12-Coupled SDM Channels Over Field-Installed Fibre Cable.

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

Proceedings of the European Conference on Optical Communications, 2025

Joint Few-Mode O-band and Single-Mode C-Band Transmission Over a High Cut-Off Wavelength G.654 Compatible Fiber.

Ruben S. Luis, Daniele Orsuti, Menno van den Hout, Stefano Gaiani, Besma Kalla, Aymeric Arnould, Julian Schneck, Simon Gross, M. Bakovic, Michael J. Withford, Shin Sato, Yuki Kawaguchi, Takemi Hasegawa, Tetsuya Hayashi, Aleksandr Donodin, S. Turltsyn, G. Radernacher, Thomas D. Bradley, Pierpaolo Boffi, C. Okcnkwo, Hideaki Furukawa

Proceedings of the European Conference on Optical Communications, 2025

430 Tb/S GMI Data Rate Over a Standard G.654 Fiber Using Few-Mode O-Band and Single-Mode ESCL-Band Transmission.

Ruben S. Luís, Daniele Orsuti, Robert Emmerich, Aleksandr Donodin, Menno van den Hout, Stefano Gaiani, Besma Kalla, Lucas Alves Zischler, Robson A. Colares, Julian Schneck, Shin Sato, Yuki Kawaguchi, Takemi Hasegawa, Tetsuya Hayashi, Simon Gross, M. Bakovic, Michael J. Withford, Nicolas K. Fontaine, Mikael Mazur, Lauren Dallachiesa, Haoshuo Chen, Georg Rademacher, Roland Ryf, David T. Neilson, Darli A. A. Mello, Cristian Antonelli, S. K. Turitsyn, Thomas D. Bradley, Pierpaolo Boffi, Chigo Okonkwo, Ronald Freund, Colja Schubert, Hideaki Furukawa

Proceedings of the European Conference on Optical Communications, 2025

Vertically Coded Probabilistic Shaping Enabling MDL-Tolerant Over-14.5- Tb/S/λ Spatial MIMO Transmission.

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

Proceedings of the European Conference on Optical Communications, 2025

SDM Transmission Technologies Enabling Over-10-Tb/S SDM-MIMO Signals.

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

Proceedings of the European Conference on Optical Communications, 2025

Designing Energy-Efficient Cladding-Pumped Multi-Core Erbium-Doped Fiber Amplifiers.

Haoshuo Chen, Roland Ryf, Nicolas K. Fontaine, Xiaonan Xu, Lauren Dallachiesa, Mikael Mazur, Hirotaka Sakuma, Takemi Hasegawa, Tetsuya Hayashi, David T. Neilson

Proceedings of the European Conference on Optical Communications, 2025

2024

Record Low Loss Optical Fiber with 0.1397 dB/km.

Shin Sato, Yuki Kawaguchi, Hirotaka Sakuma, Tetsuya Haruna, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

Advancements in Key Technological Building Blocks for Enabling MCF Implementation.

Tetsuya Nakanishi, Tetsuya Hayashi, Shintaro Mouri, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

Measurement-End Dependence of Counter-Propagating Crosstalk in Spooled Multi-Core Fiber.

Yuto Kobayashi, Shin Sato, Yuki Kawaguchi, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

2023

Power Efficient Core Pumped Multicore Erbium Doped Optical Fiber Amplifier.

Takafumi Ohtsuka, Takahiro Kikuchi, Takahiro Suganuma, Takemi Hasegawa, Hidehisa Tazawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

2022

Randomly-Coupled Multi-Core Fiber Technology.

Tetsuya Hayashi, Taiji Sakamoto, Yusuke Yamada, Roland Ryf, René-Jean Essiambre, Nicolas K. Fontaine, Mikael Mazur, Haoshuo Chen, Takemi Hasegawa

Proc. IEEE, 2022

Characterization of Inter-core Crosstalk of Multi-core Fiber as a Function of Bending Radius with Multi-channel OTDR.

Yuto Kobayashi, Takahiro Suganuma, Tetsuya Hayashi, Takemi Hasegawa, Masato Yoshida, Masataka Nakazawa

Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

Coupled Multi-core Fiber Technologies.

Tetsuya Hayashi, Taiji Sakamoto, Roland Ryf, Nicolas K. Fontaine, Mikael Mazur, René-Jean Essiambre, Yusuke Yamada, Haoshuo Chen, Takemi Hasegawa

Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

Comparison of transfer matrix stability between a 110 km 7-core coupled-core multi-core fiber and single-mode fiber.

Mikael Mazur, Nicolas K. Fontaine, Steve Corteselli, Haoshuo Chen, Lauren Dallachiesa, Tetsuya Hayashi, Hirotaka Sakuma, Takemi Hasegawa, Roland Ryf, David T. Neilson

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

Real-Time Transmission over 2×55 km All 7-Core Coupled-Core Multi-Core Fiber Link.

Mikael Mazur, Lauren Dallachiesa, Nicolas K. Fontaine, Roland Ryf, Erik Börjeson, Haoshuo Chen, Hirotaka Sakuma, Takafumi Ohtsuka, Tetsuya Hayashi, Takemi Hasegawa, Hidehisa Tazawa, David T. Neilson, Per Larsson-Edefors

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

Ultra-Low-Loss MCF Fanouts for Submarine SDM Applications.

V. I. Kopp, Jongchul Park, Jon Singer, Dan Neugroschl, Takahiro Suganuma, Takemi Hasegawa, Takafumi Ohtsuka, Hidehisa Tazawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

Uncoupled Multi-core Fiber Design for Practical Bidirectional Optical Communications.

Tetsuya Hayashi, Takuji Nagashima, Ayumi Inoue, Hirotaka Sakuma, Takahiro Suganuma, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

2021

Performance Evaluation of an Interband All-Optical Wavelength Converter for Cost-Effective High-Capacity Optical Networks.

Isaac Sackey, Robert Elschner, Robert Emmerich, Carsten Schmidt-Langhorst, D. D. Groß, Georg Rademacher, Yoshinari Awaji, Hideaki Furukawa, Takemi Hasegawa, Colja Schubert, Ronald Freund

Proceedings of the European Conference on Optical Communication, 2021

Transfer Matrix Characterization and Mode-Dependent Loss Optimization of Packaged 7-Core Coupled-Core EDFA.

Mikael Mazur, Nicolas K. Fontaine, Roland Ryf, Haoshuo Chen, Lauren Dallachiesa, Takafumi Ohtsuka, Hirotaka Sakuma, Tetsuya Hayashi, Takemi Hasegawa, Hidehisa Tazawa, David T. Neilson

Proceedings of the European Conference on Optical Communication, 2021

2019

Low-Loss Uncoupled Two-Core Fiber for Power Efficient Practical Submarine Transmission.

Yoshiaki Tamura, Tetsuya Hayashi, Tetsuya Nakanishi, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

Coupled-Core Transmission Over 7-Core Fiber.

Roland Ryf, Juan Carlos Alvarado-Zacarias, Steffen Wittek, Nicolas K. Fontaine, René-Jean Essiambre, Haoshuo Chen, Rodrigo Amezcua Correa, Hirotaka Sakuma, Tetsuya Hayashi, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

Wide-Band Intermodal Wavelength Conversion in a Dispersion Engineered Highly Nonlinear FMF.

Georg Rademacher, Ruben S. Luis, Benjamin J. Puttnam, Yoshinari Awaji, Masato Suzuki, Takemi Hasegawa, Naoya Wada

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

Coupled 7-Core Erbium Doped Fiber Amplifier and Its Characterization.

Takafumi Ohtsuka, Masato Tanaka, Hirotaka Sakuma, Takemi Hasegawa, Tetsuya Hayashi, Hedehisa Tazawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

Modal Dynamics in Spatially Multiplexed Links.

Karthik Choutagunta, Roland Ryf, Nicolas K. Fontaine, Steffen Wittek, Juan Carlos Alvarado-Zacarias, Mikael Mazur, Haoshuo Chen, René-Jean Essiambre, Rodrigo Amezcua Correa, Tetsuya Hayashi, Yoshiaki Tamura, Takemi Hasegawa, Toshiki Taru, Joseph M. Kahn

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

Channel Selective Wavelength Conversion by Means of Inter Modal Four Wave Mixing.

Omar F. Anjum, Kyle R. H. Bottrill, Peter Horák, Yongmin Jung, Masato Suzuki, Yoshinori Yamamoto, Takemi Hasegawa, David J. Richardson, Francesca Parmigiani, Periklis Petropoulos

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

Characterization of Coupled-Core Fiber Amplifiers using Swept-Wavelength Interferometer.

Juan Carlos Alvarado-Zacarias, Charles Matte-Breton, Roland Ryf, Nicolas K. Fontaine, Haoshuo Chen, Steffen Wittek, Hirotaka Sakuma, Takafumi Ohtsuka, Tetsuya Hayashi, Takemi Hasegawa, Sophie LaRochelle, Rodrigo Amezcua Correa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

2018

Low Loss Splicing Between Coupled Multi-Core Fibers with Thermally Expanded Cores.

Masato Suzuki, Hitoshi Yoshii, Teruhiro Ito, Yoshinori Yamamoto, Tetsuya Hayashi, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

2017

Lowest-ever 0.1419-dB/km loss optical fiber.

Yoshiaki Tamura, Hirotaka Sakuma, Keisei Morita, Masato Suzuki, Yoshinori Yamamoto, Kensaku Shimada, Yuya Honma, Kazuyuki Sohma, Takashi Fujii, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

Low-loss splice of large effective area fiber using fluorine-doped cladding standard effective area fiber.

Masato Suzuki, Yoshiaki Tamura, Yoshinori Yamamoto, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

Coupled-core optical amplifier.

Nicolas K. Fontaine, Jose Enrique Antonio-Lopez, Haoshuo Chen, Roland Ryf, David T. Neilson, Axel Schülzgen, Juan Carlos Alvarado-Zaharias, René-Jean Essiambre, Hirotaka Sakuma, Takemi Hasegawa, Tetsuya Nakanishi, Tetsuya Hayashi, Rodrigo Amezcua Correa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

Long-Haul Transmission over Multi-Core Fibers with Coupled Cores.

Roland Ryf, Nicolas K. Fontaine, Sun Hyok Chang, Juan Carlos Alvarado, Bin Huang, Jose Enrique Antonio-Lopez, Haoshuo Chen, René-Jean Essiambre, Ellsworth Burrows, Robert W. Tkach, Rodrigo Amezcua Correa, Tetsuya Hayashi, Yoshiaki Tamura, Takemi Hasegawa, Toshiki Taru

Proceedings of the European Conference on Optical Communication, 2017

2016

Silica-based highly nonlinear fiber advances.

Masaaki Hirano, Yoshinori Yamamoto, Takemi Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

125-μm-Cladding coupled multi-core fiber with ultra-low loss of 0.158 dB/km and record-low spatial mode dispersion of 6.1 ps/km.

Tetsuya Hayashi, Yoshiaki Tamura, Takemi Hasegawa, Toshiki Taru

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016