Accession Number : ADD003006

Title :   Optical Waveguide Coupler.

Descriptive Note : Patent,


Personal Author(s) : Caton,William M

Report Date : 06 Jul 1976

Pagination or Media Count : 7

Abstract : Light energy is coupled between a first optical path including a first channel optical waveguide defined by a selected material diffused into a substrate, and a second optical path including a second channel optical waveguide defined by a selected material diffused into the same substrate. The two channel optical waveguides are disposed in substantially non-coupling, co-extensive proximity on the substrate. An area of the same substrate between the two channel optical waveguides is diffused with a material for inducing a determinable degree of coupling between the two optical waveguides but is of insufficient depth of diffusion to support light wave propagation in and of itself in the manner of an optical waveguide. One of the principal advantages of the optical coupler-modulator as conceived by the present invention is its ease of fabrication in that the requisite dimensional tolerances facilitate the employment of relatively simple and uncomplicated techniques such as photolithography in the required fabrication.

Descriptors :   *Optical waveguides, *Waveguide couplers, *Patents, Fabrication, Photolithography, Fiber optics, Optical communications, Diffusion

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE