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14 November 2003 Avoiding thermal lenses with low temperatures
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Proceedings Volume 5147, ALT'02 International Conference on Advanced Laser Technologies; (2003)
Event: ALT'02 International Conference on Advanced laser Technologies, 2002, Adelboden, Switzerland
Nd:YAG has favorable material properties to minimize the thermally induced lenses in lasers at cryogenic temperatures. In the present work we measured a significant reduction of the thermal lens in a Nd:YAG rod cooled with liquid nitrogen. The power range for stable fundamental-mode laser oscillation was demonstrated to be significantly enlarged at low temperatures. The experimental results were compared to analytical models and finite-elements simulations.
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Hansjuerg Glur and Thomas Graf "Avoiding thermal lenses with low temperatures", Proc. SPIE 5147, ALT'02 International Conference on Advanced Laser Technologies, (14 November 2003);

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