Kouji Nakahara

According to our database, Kouji Nakahara authored at least 13 papers between 2005 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

CW-WDM MSA compatible 100-mW (up to 50°C), 400-GHz spacing highly-reliable CW-DFB 8-channel laser array.

Ryosuke Hatai, Kouji Nakahara, Atsushi Nakamura, Takayuki Nakajima, Yoshihiko Kobayashi, Takeo Kageyama, Shigehisa Tanaka

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

2022

Over 100 mW Uncooled Operation of SOA-integrated 1.3-µm Highly Reliable CW-DFB Laser.

Shoko Yokokawa, Atsushi Nakamura, Shigetaka Hamada, Ryosuke Nakajima, Kaoru Okamoto, Masatoshi Arasawa, Kouji Nakahara, Shigehisa Tanaka

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022

2021

112-Gb/s PAM-4 Uncooled Directly Modulated BH Lasers.

Kouji Nakahara, Kazuki Suga, Kaoru Okamoto, Shigenori Hayakawa, Masatoshi Arasawa, Tetsuya Nishida, Ryu Washino, Takeshi Kitatani, Masatoshi Mitaki, Hironori Sakamoto, Yasushi Sakuma, Shigehisa Tanaka

Proceedings of the European Conference on Optical Communication, 2021

2020

Analysis of TDECQ Dependence on Skew and Extinction Ratio with 106-Gb/s PAM-4 Modulation of Directly Modulated Submicron Ridge Localized Buried Heterostructure Lasers.

Kazuki Suga, Kouji Nakahara, Kaoru Okamoto, Shigenori Hayakawa, Masatoshi Arasawa, Tetsuya Nishida, Ryu Washino, Takeshi Kitatani, Masatoshi Mitaki, Hironori Sakamoto, Yasushi Sakuma, Shigehisa Tanaka

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

2018

Superior BER Transmission of 106-Gb/s/lane Skewless PAM4 over 10 km by Utilizing 1.3-μm Directly Modulated InGaAlAs-MQW BH Lasers and Incoherent Multiplexing of Two NRZ Signals.

Kouji Nakahara, Riu Hirai, Takeshi Kitatani, Nobuhiko Kikuchi, Takayoshi Fukui, Kaoru Okamoto, Yasushi Sakuma, Kohichi Robert Tamura, Shigehisa Tanaka

Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

2016

Monolithically integrated 4 ch × 25.8 Gbps lens-integrated surface-emitting DFB laser array directly coupled to SMF.

Koichiro Adachi, Takanori Suzuki, Aki Takei, Kouji Nakahara, Shigehisa Tanaka, Akira Nakanishi, Kazuhiko Naoe

IEICE Electron. Express, 2016

A facet-free 1.3-µm surface-emitting DFB laser for a low-cost optical module.

Koichiro Adachi, Takanori Suzuki, Kouji Nakahara, Shigehisa Tanaka, Akira Nakanishi, Kazuhiko Naoe

IEICE Electron. Express, 2016

2015

A 50-Gb/s NRZ-modulated optical transmitter based on a DFB-LD and a 0.18-µm SiGe BiCMOS LD driver.

Takashi Takemoto, Yasunobu Matsuoka, Yoshikazu Sugiyama, Hidenori Yonezawa, Hiroki Yamashita, Koichiro Adachi, Takahiro Nakamura, Etsuko Nomoto, Kouji Nakahara, Hideo Arimoto, Kenichi Osada, Tatemi Ido

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Capability of high optical-feedback tolerance and non-hermetic-packaging for low-cost interconnections using lens-integrated surface-emitting laser.

Takanori Suzuki, Koichiro Adachi, Aki Takei, Yuki Wakayama, Akira Nakanishi, Kazuhiko Naoe, Kouji Nakahara, Shigehisa Tanaka, Kazuhisa Uomi

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

2014

56-Gb/s direct modulation in InGaAlAs BH-DFB lasers at 55°C.

Kouji Nakahara, Yuki Wakayama, Takeshi Kitatani, Takafumi Taniguchi, Toshihiko Fukamachi, Yasushi Sakuma, Shigehisa Tanaka

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2014

2013

28-Gb/s directly modulated InGaAlAs ACPM DFB lasers with high mask margin of 22% at 55°C.

Kouji Nakahara, Yuki Wakayama, K. Hiruma, Takeshi Kitatani, Kazunori Shinoda, T. Fukamachi, Yasushi Sakuma, Shigehisa Tanaka

Proceedings of the 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013

2006

100-Gb/s Physical-Layer Architecture for Next-Generation Ethernet.

Hidehiro Toyoda, Shinji Nishimura, Michitaka Okuno, Kouji Fukuda, Kouji Nakahara, Hiroaki Nishi

IEICE Trans. Commun., 2006

2005

High-Temperature and High-Speed Performances of InGaAlAs-MQW DFB Lasers for 10-Gb/s Datacom Applications.

Kouji Nakahara

IEICE Trans. Electron., 2005