Analytical calculation of temperature profiles in solid state laser disks mounted on multi-layered heat spreaders using Hankel transforms

N. Hodgson; A. Caprara

doi:10.1117/12.2249700

17 February 2017 Analytical calculation of temperature profiles in solid state laser disks mounted on multi-layered heat spreaders using Hankel transforms

N. Hodgson, A. Caprara

Author Affiliations +

Proceedings Volume 10082, Solid State Lasers XXVI: Technology and Devices; 100820I (2017) https://doi.org/10.1117/12.2249700
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

The main challenge in thin disk laser design is the realization of efficient heat removal from the pumped area by optimizing the heat spreading and the water impingement cooling. This generally requires calculating of the temperature distribution in the disk by numerically solving the heat conduction equation using finite element algorithms.

We have developed a simple method to calculate disk temperature profiles that is based on analytically solving the heat conduction equation in Hankel Transform Space. This method can be applied to disks that are mounted on multi-layered, water-cooled heat spreaders, which may include glue or solder layers and dielectric coating layers. This allows parametric optimization of the heat removal process in pumped solid state and semiconductor disks without having to use finite-element programs.

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N. Hodgson and A. Caprara "Analytical calculation of temperature profiles in solid state laser disks mounted on multi-layered heat spreaders using Hankel transforms", Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 100820I (17 February 2017); https://doi.org/10.1117/12.2249700

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