Avoiding thermal lenses in Nd:YAG with cryogenic cooling

Hansjuerg Glur; Thomas Graf

doi:10.1117/12.478990

25 June 2003 Avoiding thermal lenses in Nd:YAG with cryogenic cooling

Hansjuerg Glur, Thomas Graf

Author Affiliations +

Proceedings Volume 4969, Laser Resonators and Beam Control VI; (2003) https://doi.org/10.1117/12.478990
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

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-element simulations.

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Hansjuerg Glur and Thomas Graf "Avoiding thermal lenses in Nd:YAG with cryogenic cooling", Proc. SPIE 4969, Laser Resonators and Beam Control VI, (25 June 2003); https://doi.org/10.1117/12.478990

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