Method and apparatus for a wavelength insensitive 90-degree...

Optical waveguides – Integrated optical circuit

Reexamination Certificate

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C385S015000

Reexamination Certificate

active

07876983

ABSTRACT:
Provided are a method and apparatus directed to hybrid electromagnetic processing devices. The apparatus includes a planar integrated optical device. The planar integrated optical device has at least one input optical waveguide, a free space optical region and a plurality of output optical waveguides. The optical waveguides end connecting to the free space optical region. The at least one input optical waveguide has an offset in a core thereof at joined ends of an input portion and an output portion of the at least one input optical waveguide.

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patent: 7330618 (2008-02-01), Doerr
patent: 2004/0105677 (2004-06-01), Hamada
patent: 1020020096450 (2002-12-01), None
I Kaminow/T Li, Optical Fiber Telecommunications IVI Components, Chapter 9 sections 2.4-2.6 (pp. 414-420) by Christopher R Doerr, Copyright 2002, Elsevier Science, ISBN 0-12-395172-0.
International Search Report and Written Opinion for PCT/US2009/063984; May 27, 2010, copy consisits of 11 pages.

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