Communication system using sheet light guide

Optical waveguides – Planar optical waveguide – Thin film optical waveguide

Reexamination Certificate

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C385S014000, C385S024000

Reexamination Certificate

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11043952

ABSTRACT:
In a communication system using a sheet light guide (10) which is formed to contain light-scattering particles in a sheet optical medium and propagates signal light incident from one end surface thereof to the other end surface side while scattering the signal light by the particles, a photodetector (55) which is coupled to the other end surface of the sheet light guide (10) and detects the signal light and a demultiplexer (84) which distributes an output of the photodetector (55) to a plurality of lines are provided.

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patent: 5542017 (1996-07-01), Koike
patent: 5548670 (1996-08-01), Koike
patent: 5602663 (1997-02-01), Hamaguchi et al.
patent: 5604748 (1997-02-01), Date et al.
patent: 5822475 (1998-10-01), Hirota et al.
patent: 6907177 (2005-06-01), Iwasaki et al.
patent: 11-31035 (1999-02-01), None
“High-Uniformity Star Coupler Using Diffused Light Transmission” IEICE Trans. Electron, vol. E84C, No. 3, Mar. 2001 p. 339.

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