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Proceedings Paper

Solar Pumped Nd:Cr:GSGG Laser
Author(s): Y. Noter; M. Oron; J. Shwartz; M. Weksler; A. Yogev
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Paper Abstract

Direct solar illumination was used to pump a 1/4" x 3" Nd:Cr:GSGG rod and achieved quasi CW laser action at average powers of 20 watt. The solar radiation was chopped at a duty cycle of 20% to avoid crystal fracture. Peak power outputs were as high as 100 watt on a clear day. Slope efficiencies, relative to the solar power reaching the crystal, were close to 10%. Near field and far field beam patterns were recorded by a TV system in order to study the thermal behavior of the crystal. At maximum irradiation levels, the output from a 25 cm long flat concave cavity, had a beam divergence on the order of 30 mrad. Details of the experimental system and the calibration procedures are given.

Paper Details

Date Published: 5 July 1989
PDF: 9 pages
Proc. SPIE 1038, 6th Mtg in Israel on Optical Engineering, (5 July 1989); doi: 10.1117/12.951089
Show Author Affiliations
Y. Noter, Soreq Research Center (Israel)
M. Oron, Soreq Research Center (Israel)
J. Shwartz, TRW S&TG (United States)
M. Weksler, Electro-Optical Industries Ltd. (United States)
A. Yogev, Weizmanri Institute of Science (Israel)


Published in SPIE Proceedings Vol. 1038:
6th Mtg in Israel on Optical Engineering
Rami Finkler; Joseph Shamir, Editor(s)

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