Kouji Nakahara

发表

Cost-effective light-emission optical sub-assembly for datacenter networks

T. Suzuki, Koichiro Adachi, K. R. Tamura, 2017, OPTO.

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

Akira Nakanishi, Kazuhiko Naoe, Kouji Nakahara, 2016, IEICE Electron. Express.

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

Kouji Nakahara, Tetsuya Nishida, Yasushi Sakuma, 2020, 2020 Optical Fiber Communications Conference and Exhibition (OFC).

Recent Trend in High-Speed/Low-Power-Consumption Light Sources for MAN/Ethernet Applications

Kouji Nakahara, Masahiro Aoki, Hideo Arimoto, 2005 .

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

Kenichi Osada, Kouji Nakahara, Koichiro Adachi, 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

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

Kazuhiko Naoe, Kouji Nakahara, Koichiro Adachi, 2016, IEICE Electron. Express.

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

Kouji Nakahara, 2005, IEICE Trans. Electron..

High-speed GaInNAs laser diodes

Hiroyuki Uchiyama, Kouji Nakahara, Shigehisa Tanaka, 2004, SPIE OPTO.

10 Gbit/s per channel parallel optical transmitter and receiver modules for high-capacity interconnects

Masato Shishikura, Kouji Nakahara, Kazuhiro Ito, 2003, 53rd Electronic Components and Technology Conference, 2003. Proceedings..

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

Kouji Nakahara, Yasushi Sakuma, Takeshi Kitatani, 2014, OFC.

1.3-μm InP-based n-type modulation-doped strained multiquantum well lasers for high-density parallel optical interconnections

Kouji Nakahara, A. Niwa, T. Toyonaka, 1998, Photonics West.

Progress in GaInNAs/GaAs long-wavelength vertical-cavity surface-emitting lasers

Kouji Nakahara, Takeshi Kitatani, Hiroaki Inoue, 1998, Photonics West.

A 1GIPS Josephson Data Processor

Hiroyuki Mori, Kouji Nakahara, Mikio Hirano, 1990 .

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

Nobuhiko Kikuchi, Kouji Nakahara, Shigehisa Tanaka, 2018, 2018 Optical Fiber Communications Conference and Exposition (OFC).

Design and operation of josephson circuits using ruffle gates with a stacked structure

Kouji Nakahara, Hideyuki Nagaishi, Haruhiro Hasegawa, 1994 .

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

Hiroaki Nishi, Kouji Nakahara, Shinji Nishimura, 2006, IEICE Trans. Commun..

Original reading device and light source assembly therefor

Kouji Nakahara, Hiroya Ooki, Tetsuichirou Yamamoto, 1999 .

High-Speed Optical Devices for Data Center Networks

Koichiro Adachi, Kouji Nakahara, Takanori Suzuki, 2018, 2018 IEEE CPMT Symposium Japan (ICSJ).

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

Akira Nakanishi, Kazuhiko Naoe, Kouji Nakahara, 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

High-power, wide-temperature-range operation of InGaAsP/InP strained-layer MQW lasers with a reverse-mesa ridge-waveguide structure

Kouji Nakahara, Masahiro Aoki, Kazuhisa Uomi, 1995 .

GaInNAs/GaAs long-wavelength lasers

Kouji Nakahara, Takeshi Kitatani, Hiroaki Inoue, 1998, Photonics West.

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

Kouji Nakahara, Shigehisa Tanaka, Kazuki Suga, 2021, 2021 European Conference on Optical Communication (ECOC).

1.3-µm InGaAlAs directly modulated MQW RWG DFB lasers operating over 10 Gb/s and 100°C

Kouji Nakahara, Takafumi Taniguchi, Takeshi Kitatani, 2004 .

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

Kouji Nakahara, Shigehisa Tanaka, Takeshi Kitatani, 2013, 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC).

Cost-Effective Optical Sub-Assembly Using Lens-Integrated Surface-Emitting Laser

Akira Nakanishi, Kazuhiko Naoe, Kouji Nakahara, 2016, Journal of Lightwave Technology.

InP-based reversed-mesa ridge-waveguide structure for high-performance long-wavelength laser diodes

Kouji Nakahara, M. Aoki, Kazuhisa Uomi, 1997 .

Direct Modulation at 56 and 50 Gb/s of 1.3- $\mu $ m InGaAlAs Ridge-Shaped-BH DFB Lasers

Kouji Nakahara, Shigehisa Tanaka, Takafumi Taniguchi, 2015, IEEE Photonics Technology Letters.

Reduced turn-on delay time in 1.3 mu m InGaAsP/lnP n-type modulation-doped strained multiquantum well lasers

Kouji Nakahara, Kazuhisa Uomi, Tomonobu Tsuchiya, 1995 .

Material properties of GaInNAs for long-wavelength laser diodes with excellent high-temperature performance

Kouji Nakahara, Takeshi Kitatani, Masahiko Kondow, 1998, Conference Proceedings. LEOS'98. 11th Annual Meeting. IEEE Lasers and Electro-Optics Society 1998 Annual Meeting (Cat. No.98CH36243).

Mechanism analysis of improved GaInNAs optical properties through thermal annealing

Kouji Nakahara, Takeshi Kitatani, Masahiko Kondow, 2000 .

A 1.3-µm GaInNAs/GaAs Single-Quantum-Well Laser Diode with a High Characteristic Temperature over 200 K

Kouji Nakahara, Takeshi Kitatani, Masahiko Kondow, 2000 .

115/spl deg/C, 12.5-Gb/s direct modulation of 1.3-/spl mu/m InGaAlAs-MQW RWG DFB laser with notch-free grating structure for datacom applications

Kouji Nakahara, Takafumi Taniguchi, Takeshi Kitatani, 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

1.3-/spl mu/m InGaAsP-InP n-type modulation-doped strained multiquantum-well lasers

Kouji Nakahara, Kazuhisa Uomi, T. Taniwatari, 1997 .

Continuous-wave operation of long-wavelength GaInNAs/GaAs quantum well laser

Kouji Nakahara, Takeshi Kitatani, Kazuhisa Uomi, 1996 .

4-channel/spl times/10-Gbit/s parallel laser-diode module for high-capacity optical interconnects

Masato Shishikura, Kouji Nakahara, Hirohisa Sano, 2002, Optical Fiber Communication Conference and Exhibit.

GaInNAs: a novel material for long-wavelength semiconductor lasers

Kouji Nakahara, Michael C. Larson, Takeshi Kitatani, 1997 .

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

Kouji Nakahara, Takeshi Kitatani, T. Taniguchi, 2014, OFC 2014.

Gas-source MBE of GaInNAs for long-wavelength laser diodes

Kouji Nakahara, Takeshi Kitatani, Hiroaki Inoue, 1998 .