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Proceedings Paper

Evaluation of stable and unstable resonator configurations for efficient second-harmonic laser systems
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Paper Abstract

A comparative evaluation of a stable resonator, self-filtering unstable resonator, and an unstable resonator with a graded reflectivity mirror (GRM) as the output coupler is presented. The GRM resonator produced a slope efficiency of 1.4 percent, best beam quality (1.4 times diffraction limit), and highest conversion efficiency (50 percent). Other accomplishments include determination of the importance of measuring thermal focusing when designing unstable resonators, development of techniques in measuring thermal focusing and birefringence in laser materials, and development of a high brightness laser system for efficient second harmonic conversion.

Paper Details

Date Published: 1 June 1992
PDF: 5 pages
Proc. SPIE 1627, Solid State Lasers III, (1 June 1992); doi: 10.1117/12.60166
Show Author Affiliations
Julie A. Williams-Byrd, NASA/Langley Research Ctr. (United States)
Norman P. Barnes, NASA/Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 1627:
Solid State Lasers III
Gregory J. Quarles, Editor(s)

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