Increased frequency conversion of Nd:YAG laser radiation with a variable-reflectivity mirror
- 15 April 1989
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 14 (8) , 399-401
- https://doi.org/10.1364/ol.14.000399
Abstract
The frequency-doubling efficiency of a Nd:YAG laser was increased by using a variable-reflectivity-mirror unstable resonator. At 5 Hz as much as 385 mJ of green light was obtained with an efficiency of 61%. The divergence of the converted light, which was 0.26 mrad at 0.5 Hz, close to the diffraction limit, increased to 0.69 mrad at 5 Hz.Keywords
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