Accession Number:

ADA022069

Title:

Fabrication of Low-Loss Optical Waveguides by Post Deposition Microstructure Modification.

Descriptive Note:

Semi-annual progress rept. 3 Jun-3 Dec 74 on Task 6,

Corporate Author:

WASHINGTON UNIV SEATTLE DEPT OF MINING METALLURGICAL AND CERAMIC ENGINEERING

Personal Author(s):

Report Date:

1975-02-28

Pagination or Media Count:

9.0

Abstract:

This report summarizes contract progress of investigations into the effects of heat treatment on linear optical waveguide structures made of ferroelectric materials. It is hypothesized that low-loss polycrystalline waveguides may be produced by orienting grain boundaries perpendicular to the waveguide axis by thermo treatment. Using the Hatzakis lift-off technique with electron resist to obtain linear waveguides, lithium tantalate films on Corning 7059 glass slides have been examined. Presently produced lithium tantalate films are lithium deficient. Techniques for improving the stochiometry are being investigated. Author

Subject Categories:

  • Fiber Optics and Integrated Optics
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE