Optical coupler

Optical waveguides – With optical coupler – Input/output coupler

Reexamination Certificate

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C385S027000, C385S031000

Reexamination Certificate

active

07031572

ABSTRACT:
An optical coupler including a substrate, a diffractive optical element defined in the substrate, the diffractive optical element structured to receive incident light diverging from a first location and to focus the incident light at a second location opposite the first location, an electro-optical device mounted on the substrate to one of (a) emit light from and (b) receive light at one of the locations, and an optical waveguide mounted on the substrate to one of (a) receive light at and (b) emit light from the other of the locations.

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patent: 5351262 (1994-09-01), Poguntke et al.
patent: 5481516 (1996-01-01), Kim
patent: 5978139 (1999-11-01), Hatakoshi et al.
patent: 6525307 (2003-02-01), Evans et al.
patent: 6536957 (2003-03-01), Buchter

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