5 July 1989 Solar Pumped Nd:Cr:GSGG Laser
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Proceedings Volume 1038, 6th Mtg in Israel on Optical Engineering; (1989); doi: 10.1117/12.951089
Event: Sixth Meeting of Optical Engineering in Israel, 1988, Tel Aviv, Israel
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.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Y. Noter, M. Oron, J. Shwartz, M. Weksler, A. Yogev, "Solar Pumped Nd:Cr:GSGG Laser", Proc. SPIE 1038, 6th Mtg in Israel on Optical Engineering, (5 July 1989); doi: 10.1117/12.951089; https://doi.org/10.1117/12.951089
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KEYWORDS
Crystals

Laser crystals

Mirrors

Optical engineering

Nd:YAG lasers

Optical testing

Calibration

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