Back to results
US 6,748,138 B2Granted
Optical grating fabrication
AssigneeFibera, Inc.
InventorsDavid W. Wang, John C. Tsai
Life of this patent
Estimating the term…
Abstract
A process (400) to construct single- and multi-dimensional optical gratings (100, 800) of interlayers (110, 230, 310 808) of differing refractive index, either in or atop a non-fiber substrate material (104, 202, 302). The optical gratings (100, 800) may particularly be Bragg type gratings, and thus suitable for receiving a laser beam (102, 240, 802) and forming there from one or more reflected beam portions (118, 248, 810) having one or more narrow wavelengths and a passed beam portion (120, 250, 812) of other wavelengths.
Claims24
A method for fabricating an optical grating, the method comprising the steps of:
- (a) providing a substrate;
- (b) providing a layer of transmissive material;
- (c) providing a first reflector, below said layer of transmissive material;
- (d) providing a grating region in said layer of transmissive material;
- and
- (e) providing a second reflector, above said layer of transmissive material, and
- wherein said first reflector, said grating region, and said second reflector are disposed to receive and contain light between said first reflector and said second reflector and to receive said light substantially normal to said grating region and to conduct said light within the plane of said transmissive material.
4 more elements
Dependencies are inferred from the claim text.