Kouichi Akahane

According to our database, Kouichi Akahane authored at least 28 papers between 2007 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of three.

2024

High-speed reach-extended IM-DD system with low-complexity DSP for 6G fronthaul [Invited].

Paikun Zhu, Yuki Yoshida, Kouichi Akahane, Ken-ichi Kitayama

J. Opt. Commun. Netw., January, 2024

High-Responsivity Unitraveling Carrier-Type Photodetector Using Avalanche InAlAs as a Collector at a High-Frequency Range.

Yaofeng Yi, Toshimasa Umezawa, Kouichi Akahane, Tetsuya Kawanishi

IEEE Access, 2024

2023

DSP-enhanced Radio-over-fiber Xhaul Networks Toward Beyond-5G.

Paikun Zhu, Yuki Yoshida, Atsushi Kanno, Kouichi Akahane, Ken-ichi Kitayama

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

Dispersion Compensation over C-band WDM Grid for 100Gb/s PAM4 System by Low-complexity Optoelectronic Feedforward Equalization (OE-FFE).

Paikun Zhu, Yuki Yoshida, Atsushi Kanno, Kouichi Akahane, Ken-ichi Kitayama

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

Delay Compensated Quad-level Delta-sigma Modulation Dual-color DRoF System for Beyond 5G Mobile Fronthaul.

Zu-Kai Weng, Pham Tien Dat, Atsushi Kanno, Tetsuya Kawanishi, Kouichi Akahane

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

100-Gbps 2-SDM 2-WDM FSO beam direct detection using resonant cavity 4x4 photodetector array.

Toshimasa Umezawa, Atsushi Matsumoto, Kouichi Akahane, Atsushi Kanno, Naokatsu Yamamoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

Transparent Radio-Fiber-Radio-Fiber System in 100-GHz Band for Indoor Uplink Signal Transmission in Beyond 5G.

Pham Tien Dat, Yuya Yamaguchi, Atsushi Kanno, Naokatsu Yamamoto, Tetsuya Kawanishi, Kouichi Akahane

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

Transparent Relay and Switching of THz-wave Signals in 285-GHz Band Using Photonic Technology.

Pham Tien Dat, Yuya Yamaguchi, Keizo Inagaki, Shingo Takano, Shotaro Hirata, Junichiro Ichikawa, Ryo Shimizu, Isao Morohashi, Yuki Yoshida, Atsushi Kanno, Naokatsu Yamamoto, Tetsuya Kawanishi, Kouichi Akahane

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023

2022

Admittance Spectroscopy Up to 67 GHz in InGaAs/InAlAs Triple-Barrier Resonant Tunneling Diodes.

Kotaro Aikawa, Michihiko Suhara, Takumi Kimura, Junki Wakayama, Takeshi Makino, Katsuhiro Usui, Kiyoto Asakawa, Kouichi Akahane, Issei Watanabe

IEICE Trans. Electron., October, 2022

60-Gb/s D-Band Wireless Signal Generation and Transmission Using Photonic Technology.

Pham Tien Dat, Keizo Inagaki, Atsushi Kanno, Kouichi Akahane

Proceedings of the RIVF International Conference on Computing and Communication Technologies, 2022

Photonic Approach to Reinforcement Learning.

Makoto Naruse, Atsushi Uchida, Kazuharu Uchiyama, Kouichi Akahane

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

400-pixel high-speed photodetector for high optical alignment robustness FSO receiver.

Toshimasa Umezawa, Atsushi Matsumoto, Kouichi Akahane, Atsushi Kanno, Naokatsu Yamamoto

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

2018

High-speed Two-dimensional Photodetector Array for 4-WDM 25-Gbaud FSO Communication.

Toshimasa Umezawa, Takahide Sakamoto, Atsushi Kanno, Kouichi Akahane, Atsushi Matsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi

Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

2017

100 GHz optical-to-radio converter module and its application in radio and power over fiber transmission through multi-core fiber.

Toshimasa Umezawa, Pham Tien Dat, Eiichi Hase, Kenichi Kashima, Atsushi Kanno, Kouichi Akahane, Atsushi Matsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

Dense SDM 32-Pixel 2-D Photodetector Array.

Toshimasa Umezawa, Tadashige Sakamoto, Atsushi Kanno, Ken Kusakata, Kouichi Akahane, Atsushi Matsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi

Proceedings of the European Conference on Optical Communication, 2017

Spatial Coherent Matched Detection Using High-Speed Two Dimensional Photo-Diode Array for Full-Channel Demultiplexing and Demodulation of Mode-Division-Multiplexed Signals.

Takahide Sakamoto, Toshimasa Umezawa, Guo-Wei Lu, Kouichi Akahane, Atsushi Matsumoto, Atsushi Kanno, Naokatsu Yamamoto, Tetsuya Kawanishi

Proceedings of the European Conference on Optical Communication, 2017

2016

31-GHz single-carrier, 44.6-Gbps photonic wireless transmission using a wide-bandwidth high power photodetector and a pre-distortion technique.

Toshimasa Umezawa, Kunihisa Jitsuno, Nobuhiko Shibagaki, Atsushi Kanno, Kouichi Akahane, A. Mstsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

2015

A 1.55-µm Waveband Optical Absorption Characterization of an Electro-Absorption Device with a Highly Stacked InAs/InGaAlAs Quantum Dot Structure.

Naokatsu Yamamoto, Kouichi Akahane, Toshimasa Umezawa, Tetsuya Kawanishi

IEICE Trans. Electron., 2015

Monolithically integrated quantum-dot optical modulator with semiconductor optical amplifier for 1.3µm waveband error-free 10-km-long transmission.

Naokatsu Yamamoto, Kouichi Akahane, Toshimasa Umezawa, Tetsuya Kawanishi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Multifunctional all-optical signal processing scheme for simultaneous multichannel WDM multicast and XOR logic gates based on FWM in QD-SOA.

Danshi Wang, Min Zhang, Guo-Wei Lu, Jun Qin, Takahide Sakamoto, Kouichi Akahane, Naokatsu Yamamoto, Tetsuya Kawanishi, Ze Li, Yue Cui

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Zero-bias operational ultra-broadband UTC-PD above 110 GHz for high symbol rate PD-array in high-density photonic integration.

Toshimasa Umezawa, Kouichi Akahane, Naokatsu Yamamoto, Atsushi Kanno, Keizo Inagaki, Tetsuya Kawanishi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Bias free operational 107-Gbaud ultra-fast photodetector.

Toshimasa Umezawa, Kouichi Akahane, Naokatsu Yamamoto, Atsushi Kanno, Tetsuya Kawanishi

Proceedings of the European Conference on Optical Communication, 2015

2014

Electro-optic devices for imaging systems using radio-over-fibre.

Tetsuya Kawanishi, Naokatsu Yamamoto, Toshimasa Umezawa, Kouichi Akahane, Atsushi Kanno, Pham Tien Dat

Proceedings of the 16th International Conference on Transparent Optical Networks, 2014

Quantum dot two-mode laser at 1.55 μm-band for 90GHz radio over fiber applications.

Kouichi Akahane, Naokatsu Yamamoto, Atsushi Kanno, Toshimasa Umezawa, Tetsuya Kawanishi

Proceedings of the European Conference on Optical Communication, 2014

2013

10-GHz High-Repetition Optical Short Pulse Generation from Wavelength-Tunable Quantum Dot Optical Frequency Comb Laser.

Naokatsu Yamamoto, Kouichi Akahane, Tetsuya Kawanishi, Hideyuki Sotobayashi, Yuki Yoshioka, Hiroshi Takai

IEICE Trans. Electron., 2013

2012

Skew Dependence of Nanophotonic Devices Based on Optical Near-Field Interactions.

Makoto Naruse, Ferdinand Peper, Kouichi Akahane, Naokatsu Yamamoto, Tadashi Kawazoe, Naoya Tate, Motoichi Ohtsu

ACM J. Emerg. Technol. Comput. Syst., 2012

2009

Experimental study on the condition of the formation of electric field domains in multiple finite-superlattices.

Naoki Ohtani, S. Noma, Kouichi Akahane, M. Hosoda, K. Fujita

Microelectron. J., 2009

2007

Novel Functionality and Material for Si-Photonics: Two-Photon Absorption Switching and Antimonide Hetero-Genius Epitaxy.

Tak-Keung Liang, Kouichi Akahane, Naokatsu Yamamoto, Luis Romeu Nunes, Tetsuya Kawanishi, Masahiro Tsuchiya

IEICE Trans. Electron., 2007