Temperature profiles in solid state lasers with variable thermal conductivity and heat deposition

George A. Thompson; Aldo Steinfeld

doi:10.1117/12.150997

13 August 1993 Temperature profiles in solid state lasers with variable thermal conductivity and heat deposition

George A. Thompson, Aldo Steinfeld

Proceedings Volume 1971, 8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing; (1993) https://doi.org/10.1117/12.150997
Event: 8th Meeting in Israel on Optical Engineering, 1992, Tel Aviv, Israel

Abstract

The general heat conduction equation is solved for the case of variable thermal conductivity and heat desposition. The solution is applied to some cases of interest for understanding the thermal gradients which exist in high average power solid state lasers. The effect of the temperature dependence of the thermal conductivity and the spatial inhomogeneity of the excitation energy on the accuracy of calculating the magnitude of the temperature gradient in a laser rod is considered. The analytical solutions for some cases of interest are presented, as are some specific results.

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George A. Thompson and Aldo Steinfeld "Temperature profiles in solid state lasers with variable thermal conductivity and heat deposition", Proc. SPIE 1971, 8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing, (13 August 1993); https://doi.org/10.1117/12.150997

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KEYWORDS

Rod lasers

Solid state lasers

Nd:YAG lasers

Thermal effects

Optical engineering

Absorption

Optical pumping

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