Solar Pumped Nd:Cr:GSGG Laser

Y. Noter; M. Oron; J. Shwartz; M. Weksler; A. Yogev

doi:10.1117/12.951089

5 July 1989 Solar Pumped Nd:Cr:GSGG Laser

Y. Noter, M. Oron, J. Shwartz, M. Weksler, A. Yogev

Proceedings Volume 1038, 6th Mtg in Israel on Optical Engineering; (1989) https://doi.org/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.

Citation Download Citation

Y. Noter, M. Oron, J. Shwartz, M. Weksler, and A. Yogev "Solar Pumped Nd:Cr:GSGG Laser", Proc. SPIE 1038, 6th Mtg in Israel on Optical Engineering, (5 July 1989); https://doi.org/10.1117/12.951089

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