Masafumi Koga

According to our database, Masafumi Koga authored at least 14 papers between 1990 and 2018.

Collaborative distances:

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

2018

Nonlinear Phase-Shift Cancellation by Taking the Geometric Mean of WDM-Signal Phase-Conjugate Pair.

Takahisa Kodama, Akira Mizutori, Takayuki Kobayashi, Takayuki Mizuno, Masafumi Koga

IEICE Trans. Commun., 2018

2017

Optical 16-QAM signal homodyne detection by extracting +/-π/4 and +/-3π/4-phase symbols.

Akira Mizutori, T. Abe, Takahisa Kodama, Masafumi Koga

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

2016

Frequency nondegenerate optical parametric phase-sensitive amplifier repeater by using recovered pump carrier generated from phase-conjugated twin waves.

Yasuhiro Okamura, Kotaro Kondo, Shingo Seki, Yuya Ohmichi, Masafumi Koga, Atsushi Takada

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

2015

Optical diversity transmission with signal and its phase-conjugate lights through multi-core fiber.

Masafumi Koga, Akira Mizutori, Teppei Ohata, H. Takara

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Nonlinear phase-shift cancellation by maximum-ratio combining WDM phase-conjugate diversity lights transmitted through multi-core fiber.

Masafumi Koga, Mitsuki Moroi, H. Takara

Proceedings of the European Conference on Optical Communication, 2015

2014

Simply configured Radio on Fiber link yielding positive gain for mobile phone system.

Junji Higashiyama, Yoshiaki Tarusawa, Masafumi Koga

IEICE Electron. Express, 2014

2013

Photonic network vision 2020 - Smart photonic networking, synthetic transport platform, and scale-free photonics.

Ken-ichi Kitayama, Masaki Fukui, Naoaki Yamanaka, Masahiko Jinno, Atsushi Hiramatsu, Takehiro Tsuritani, Satoru Okamoto, Masafumi Koga

Proceedings of the Workshops Proceedings of the Global Communications Conference, 2013

2011

Foreword.

Masafumi Koga

IEICE Trans. Commun., 2011

2003

Advances in optical path crossconnect systems using planar-lightwave circuit-switching technologies.

Shigeki Aisawa, Atsushi Watanabe, Takashi Goh, Yoshihiro Takigawa, Masafumi Koga, Hiroshi Takahashi

IEEE Commun. Mag., 2003

2002

GMPLS-based photonic multilayer router (Hikari router) architecture: an overview of traffic engineering and signaling technology.

Ken-ichi Sato, Naoaki Yamanaka, Yoshihiro Takigawa, Masafumi Koga, Satoru Okamoto, Kohei Shiomoto, Eiji Oki, Wataru Imajuku

IEEE Commun. Mag., 2002

2000

Robust photonic transport network implementation with optical cross-connect systems.

Satoru Okamoto, Masafumi Koga, Hiro Suzuki, Kenji Kawai

IEEE Commun. Mag., 2000

1998

Large-capacity optical path cross-connect system for WDM photonic transport network.

Masafumi Koga, Atsushi Watanabe, Takeshi Kawai, Ken-ichi Sato, Yasuji Ohmori

IEEE J. Sel. Areas Commun., 1998

1990

Proposal for neural-network applications to fiber-optic transmission.

Takao Matsumoto, Masafumi Koga, Kazuhiro Noguchi, Shigeki Aizawa

Proceedings of the IJCNN 1990, 1990

A high-speed learning method for analog neural networks.

Takao Matsumoto, Masafumi Koga

Proceedings of the IJCNN 1990, 1990