Wavelength multiplexer/demultiplexer comprising an optically...

Details Wavelength multiplexer/demultiplexer comprising an optically... Wavelength multiplexer/demultiplexer comprising an optically...

2004-11-26

2008-10-21

Leung, Quyen P (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

Reexamination Certificate

active

07440654

ABSTRACT:
The present invention provides a wavelength multiplexer/demultiplexer comprising a plurality of regions of optically permissive material. The plurality of regions are disposed adjacent one another in a side by side relationship in order to define a stratified body. The materials in adjacent regions have differing indexes of refraction. The stratified body has a first surface and a second surface that are positioned in a non-parallel relationship with respect to one another. The first surface is a light-receiving surface, and the second surface is a light-exiting surface.

REFERENCES:
patent: 4957371 (1990-09-01), Pellicori et al.
patent: 6396617 (2002-05-01), Scalora
patent: 6591035 (2003-07-01), Miller et al.
patent: 2001/0012149 (2001-08-01), Lin et al.
patent: 2004/0008437 (2004-01-01), Kittaka et al.
patent: 73310 (1983-03-01), None
patent: 61248006 (1986-11-01), None
patent: 61248007 (1986-11-01), None
Lin et al, Highly Dispersive Photonic Band-gap Prism, Optics Letters, vol. 21, No. 21, pp. 1771-1773, Nov. 1996.

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