Accession Number:

ADA009901

Title:

Thin Film Light Sources for Integrated Optics.

Descriptive Note:

Final rept. 5 Feb 73-5 Nov 74,

Corporate Author:

ROCKWELL INTERNATIONAL CORP ANAHEIM CALIF ELECTRONICS RESEARCH DIV

Report Date:

1975-04-01

Pagination or Media Count:

149.0

Abstract:

The study and experimental demonstration of concepts adapting existing laser media to a planar format such that it can be coupled to an optical waveguide compatible with representative integrated optical circuits is presented. The approach considers distributed-feedback waveguide lasers incorporating a coupler to extract the radiation and launch the radiation into the output waveguide. The distributed-feedback concept is employed because it is compatible with planar processing technology, eliminating orthogonal boundaries which are necessary for Fabry-Perot resonant structures. Several laser-waveguide coupler approaches amenable to both monolithic and hybrid approaches were investigated. Distributed-feedback stimulated emission was observed using both the fundamental 1150 A and third harmonic 3500 A gratings in an electron injection laser, using a quasi-double-heterostructure large optical cavity, where both liquid-phase and vapor-phase epitaxy were employed. A new side wall coupling technique appropriate for GaAs electron injection lasers was demonstrated which is compatible with either a distributed-feedback or Fabry-Perot resonant structure. This latter hybrid configuration was demonstrated to couple with a GaAlAs epitaxial waveguide on Al2O3 Through the evanescent field associated with the longitudinal active waveguide region.

Subject Categories:

  • Lasers and Masers
  • Fiber Optics and Integrated Optics
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE