Abstract

The performance of an x-axis neodymium-doped lanthanum beryllate laser (Nd:BeL) was compared to that of Nd:YAG operating as repetitively Q-switched lasers. At 1 Hz, the Q-switched outputs of Nd:BeL were twice that of Nd:YAG in rough agreement with their respective stimulated emission cross sections; however, at 10 Hz, the output with Nd:YAG was essentially constant while that of Nd:BeL fell appreciably. Analysis showed that this could be attributed to thermal lensing in Nd:BeL.

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