Koichi Hasebe

According to our database, Koichi Hasebe authored at least 17 papers between 1988 and 2018.

Collaborative distances:

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

2018

A 137-mW, 4 ch × 25-Gbps Low-Power Compact Transmitter Flip-Chip-Bonded 1.3-μm LD-Array-on-Si.

Toshiki Kishi, Munehiko Nagatani, Shigeru Kanazawa, Shinsuke Nakano, Hiroaki Katsurai, Takuro Fujii, Hidetaka Nishi, Takaaki Kakitsuka, Koichi Hasebe, Kota Shikama, Yuko Kawajiri, Atsushi Aratake, Hideyuki Nosaka, Hiroshi Fukuda, Shinji Matsuo

Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

Lateral Current Injection Membrane Buried Heterostructure Lasers Integrated on 200-nm-thick Si Waveguide.

Takuma Aihara, Tatsurou Hiraki, Koji Takeda, Koichi Hasebe, Takuro Fujii, Tai Tsuchizawa, Takaaki Kakitsuka, Shinji Matsuo

Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

2017

Advantages of SOA Assisted Extended Reach EADFB Laser (AXEL) for Operation at Low Power and with Extended Transmission Reach.

Wataru Kobayashi, Naoki Fujiwara, Takahiko Shindo, Yoshitaka Ohiso, Shigeru Kanazawa, Hiroyuki Ishii, Koichi Hasebe, Hideaki Matsuzaki, Mikitaka Itoh

IEICE Trans. Electron., 2017

Evaluation of Device Parameters for Membrane Lasers on Si Fabricated with Active-Layer Bonding Followed by Epitaxial Growth.

Takuro Fujii, Koji Takeda, Erina Kanno, Koichi Hasebe, Hidetaka Nishi, Tsuyoshi Yamamoto, Takaaki Kakitsuka, Shinji Matsuo

IEICE Trans. Electron., 2017

Heterogeneously integrated InP/Si metal-oxide-semiconductor capacitor Mach-Zehnder modulator.

Tatsurou Hiraki, Takuma Aihara, Koichi Hasebe, Takuro Fujii, Koji Takeda, Tai Tsuchizawa, Takaaki Kakitsuka, Hiroshi Fukuda, Shinji Matsuo

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

28-Gbit/s 80-km transmission using SOA-assisted extended-reach EADFB laser (AXEL).

Koichi Hasebe, Wataru Kobayashi, Naoki Fujiwara, Takahiko Shindo, Toshihide Yoshimatsu, Shigeru Kanazawa, Tetsuichiro Ohno, Hiroaki Sanjoh, Yoshitaka Ohiso, Hiroyuki Ishii, Yoshiaki Sone, Hideaki Matsuzaki

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

32-Gbit/s Heterogeneously Integrated Mach-Zehnder Modulator with 250μm-long III-V/Si MOS-capacitor Phase Shifter.

Tatsurou Hiraki, Takuma Aihara, Koichi Hasebe, Takuro Fujii, Koji Takeda, Takaaki Kakitsuka, Tai Tsuchizawa, Hiroshi Fukuda, Shinji Matsuo

Proceedings of the European Conference on Optical Communication, 2017

2015

Membrane distributed-reflector laser integrated with SiOx-based spot-size converter on Si platform.

Hidetaka Nishi, Takuro Fujii, Koji Takeda, Koichi Hasebe, Takaaki Kakitsuka, Tai Tsuchizawa, Tsuyoshi Yamamoto, Koji Yamada, Shinji Matsuo

Proceedings of the European Conference on Optical Communication, 2015

2014

25-Gbit/s direct modulation of photonic-crystal lasers with a 10.5-fJ/bit energy cost for on/off-chip optical interconnects.

Koji Takeda, Tomonari Sato, Takuro Fujii, Akihiko Shinya, Eiichi Kuramochi, Masaya Notomi, Koichi Hasebe, Takaaki Kakitsuka, Shinji Matsuo

Proceedings of the European Conference on Optical Communication, 2014

Ultralow operating energy of directly modulated DFB laser on SiO2/Si substrate.

Shinji Matsuo, Takuro Fujii, Koichi Hasebe, Koji Takeda, Tomonari Sato, Takaaki Kakitsuka

Proceedings of the European Conference on Optical Communication, 2014

40-Gbit/s EADFB laser integrated with short cavity SOA improving chirp characteristics with low power consumption.

Wataru Kobayashi, M. Arai, Takeshi Fujisawa, Y. Shibata, Tomonari Sato, Toshio Ito, Koichi Hasebe, Takayuki Yamanaka, Hiroaki Sanjoh

Proceedings of the European Conference on Optical Communication, 2014

50-Gbit/s operation of lateral pin diode structure electro-absorption modulator integrated DFB laser.

Koichi Hasebe, Tomonari Sato, Koji Takeda, Takuro Fujii, Takaaki Kakitsuka, Shinji Matsuo

Proceedings of the European Conference on Optical Communication, 2014

2013

Integrated on-chip optical links using photonic-crystal lasers and photodetectors with current blocking trenches.

Koji Takeda, Tomonari Sato, Akihiko Shinya, Kengo Nozaki, Hideaki Taniyama, Masaya Notomi, Koichi Hasebe, Takaaki Kakitsuka, Shinji Matsuo

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

2005

All-optical regenerator with re-polarization function based on dual optical injection VCSEL.

Koichi Hasebe, Yutaka Onishi, Fumio Koyama

IEICE Electron. Express, 2005

Novel polarization controller based on injection-locked vertical-cavity surface-emitting laser.

Koichi Hasebe, Yutaka Onishi, Fumio Koyama

IEICE Electron. Express, 2005

1993

Toolkit for Shared Hypermedia on a Distributed Object Oriented Architecture.

Rajiv Trehan, Nobuyuki Sawashima, Koji Yamaguchi, Koichi Hasebe

Proceedings of the First ACM International Conference on Multimedia '93, 1993

1988

Experiences with an On-Line Translating Dialogue System.

Seiji Miike, Koichi Hasebe, Harold L. Somers, Shin'ya Amano

Proceedings of the 26th Annual Meeting of the Association for Computational Linguistics, 1988