Accession Number : AD0809274

Title :   LASER SPECTRAL CONTROL TECHNIQUES.

Descriptive Note : Final rept. 28 Jun 65-21 Aug 66,

Corporate Author : XEROX ELECTRO-OPTICAL SYSTEMS PASADENA CA

Personal Author(s) : Clark, G. L.

Report Date : JAN 1967

Pagination or Media Count : 136

Abstract : Intracavity modulation of laser oscillators offers a variety of spectral control techniques. The characteristics of laser signals resulting from FM and AM internal modulation and several output coupling configurations are compared from the point of view of optical surveillance radar. The coherent pulse train generated by an AM mode-locked laser operating in the TEM mode is selected as the optimum signal for multiple point targets or extended targets. A breadboard YAG:Nd3+ laser with most of the desired characteristics is described and experimentally evaluated. (Author)

Descriptors :   *ELECTROOPTICS), (*LASERS, OSCILLATORS, SEARCH RADAR, COHERENT RADIATION, RESOLUTION, RANGE(DISTANCE), PHASE MODULATION, NEODYMIUM COMPOUNDS, CAVITY RESONATORS, AMPLITUDE MODULATION, FREQUENCY MODULATION, MATHEMATICAL ANALYSIS, FEASIBILITY STUDIES, ATMOSPHERICS, YTTRIUM COMPOUNDS.

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE