Accession Number : AD0904986

Title :   Modularized Fiber-Optic-Coupled Laser Arrays.

Descriptive Note : Quarterly progress report no. 2, 1 Apr-30 Jun 72,

Corporate Author : TEXAS INSTRUMENTS INC DALLAS SEMICONDUCTOR GROUP

Personal Author(s) : Doerbeck, Friedrich H. ; Carr, David L.

Report Date : SEP 1972

Pagination or Media Count : 28

Abstract : Single-heterostructure (SH) lasers have been improved by the reduction of turn-on delays and degradation problems. The emission beam angle of large-optical-cavity (LOC) lasers has been reduced from approx 60 deg. to <35 deg., the array-emission angle required for this contract. Fiber-optic ribbons of 1-mil- and 3-mil-square glass fibers were evaluated and found to differ greatly in their ability to transmit light from SH lasers of larger than average beam width. The first laser module was fabricated and tested. It emitted 24 watts peak power, with 60% of the energy contained in a 35 deg. beam. The 8400 A emitted power dropped by 16% at a 5-kHz repetition rate. (Author)

Descriptors :   (*INFRARED LASERS, FIBER OPTICS), MODULES(ELECTRONICS), LIGHT TRANSMISSION, GLASS TEXTILES, POWER, DEGRADATION, SEMICONDUCTOR DIODES, INTENSITY, LASERS, GALLIUM ARSENIDES, MANUFACTURING.

Subject Categories : Lasers and Masers
      Infrared Detection and Detectors
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE