Mr. Yoichi Hashimoto Profile

Yoichi Hashimoto

at NEC Corp

SPIE Involvement:

Author

Publications (6)

Proceedings Article | 26 March 2019 Paper

Design and verification of a space-grade 10 Gbit/s high-speed transponder for an optical feeder link

Hideaki Kotake, Junichi Nakamura, Takuo Goda, Yoichi Hashimoto, Yutaka Oshima

Proc. SPIE. 10910, Free-Space Laser Communications XXXI

KEYWORDS: Transmitters, Satellites, Receivers, Field programmable gate arrays, Telecommunications, Optical communications, Free space optics, Photonic integrated circuits, Forward error correction, Transponders

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Proceedings Article | 4 March 2019 Paper

Study on a screening test process for quality assurance of optical communication devices for satellite

Junichi Nakamura, Hideaki Kotake, Takuo Goda, Yoichi Hashimoto, Yutaka Oshima

Proc. SPIE. 10910, Free-Space Laser Communications XXXI

KEYWORDS: Optical components, Satellites, Manufacturing, Reliability, Optical testing, Optical communications, Satellite communications, Data communications, Optics manufacturing, Commercial off the shelf technology

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Proceedings Article | 23 February 2012 Paper

Development and evaluation of a digital signal processing for single polarization QPSK modulation format

Kazuomi Endo, Yoichi Hashimoto, Takeyoshi Tanaka, Toru Takamichi, Kiyoshi Fukuchi, Morio Toyoshima, Yoshihisa Takayama

Proc. SPIE. 8246, Free-Space Laser Communication Technologies XXIV

KEYWORDS: Digital signal processing, Oscillators, Modulation, Polarization, Receivers, Telecommunications, Free space optics, Data communications, Signal detection, Free space optical communications

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Proceedings Article | 23 February 2012 Paper

40-Gbit/s optical free-space transmission experiment using QPSK modulation format

Y. Hashimoto, N. Kamiya, K. Endo, T. Tanaka, S. Nishimura, N. Hashimoto, M. Shimizu, Y. Suzuki, K. Shiratama, M. Toyoshima, Y. Takayama, K. Fukuchi

Proc. SPIE. 8246, Free-Space Laser Communication Technologies XXIV

KEYWORDS: Transmitters, Digital signal processing, Optical amplifiers, Modulation, Receivers, Free space, Transmittance, Free space optics, Forward error correction, Free space optical communications

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Proceedings Article | 2 October 2006 Paper

Optical signal processing using mode-locked semiconductor laser diode

Y. Hashimoto, R. Kuribayashi, S. Nakamura, I. Ogura

Proc. SPIE. 6389, Active and Passive Optical Components for Communications VI

KEYWORDS: Optical filters, Clocks, Polarization, Mode locking, Interference (communication), Semiconductor lasers, Optical clocks, Picosecond phenomena, Multiplexers, Hybrid optics

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Showing 5 of 6 publications

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