Y
Yasuhiro Koike
Researcher at Keio University
Publications - 550
Citations - 9109
Yasuhiro Koike is an academic researcher from Keio University. The author has contributed to research in topics: Optical fiber & Plastic optical fiber. The author has an hindex of 45, co-authored 544 publications receiving 8756 citations. Previous affiliations of Yasuhiro Koike include Asahi Glass Co. & Celanese.
Papers
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Journal ArticleDOI
Plastic optical fiber lasers and amplifiers containing lanthanide complexes.
TL;DR: This review describes recent progress on plastic optical fiber lasers and amplifiers with lanthanides and focuses especially on the design and selection of plastic optical Fiber and chelate materials.
Patent
Illuminative light communication device
Masao Nakagawa,Toshihiko Komine,Shinichiro Haruyama,Takaaki Ishigure,Yasuhiro Koike,Shogo Kitano,Yasuo Sugawara +6 more
TL;DR: In this article, an illuminating end communication device is equipped with an illuminating light source, and an electric power fed to the light source is modulated with a modulating unit responding to transmission data, and the modulated light is sent out as illuminating light.
Journal ArticleDOI
High-bandwidth graded-index polymer optical fiber
TL;DR: In this paper, a high-bandwidth graded-index polymer optical fiber (GI POF) was successfully obtained by the new interfacial-gel polymerization technique in which the unreactive component was used in order to obtain the quadratic refractive-index distribution.
Journal ArticleDOI
The future of plastic optical fiber
TL;DR: In this article, the authors review the status of POF development and research, particularly with respect to the application of "photonics polymer" for optical data transmission over the last hundred meters.
Patent
Illumination light communication device
Masao Nakagawa,Toshihiko Komine,Shinichiro Haruyama,Takaaki Ishigure,Yasuhiro Koike,Shogo Kitano,Yasuo Sugawara +6 more
TL;DR: In this article, a broadcast system with an LED light source for lighting, a power line that supplies electric power to the light source, a data modulator that modulates and multiplexes a plurality of pieces of data, superimposes the resulting signal on an electric power waveform, and then transmits the resulting superimposed signal waveform to the power line.