Modeling the Thermal Deformation of the Volume Bragg Grating in High-Power Beam Combining System

Lan Lan Gao

doi:10.4028/www.scientific.net/AMR.216.587

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 216Modeling the Thermal Deformation of the Volume...

Modeling the Thermal Deformation of the Volume Bragg Grating in High-Power Beam Combining System

Abstract:

Volume bragg grating is the important element in spectral beam combining technique. However the thermal-induced distortion and temperature gradient make strong impact on the grating’s performance. In this paper, a model of five 3kW off resonator laser beams combining system is analyzed through Comsol. The z-displacement and temperature distributions with different boundary conditions have been shown. The results demonstrate that Comsol is a practical and useful tool to analyze the thermal problem in the gratings.

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Periodical:

Advanced Materials Research (Volume 216)

Pages:

587-591

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.216.587

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Online since:

March 2011

Authors:

Lan Lan Gao

Keywords:

COMSOL, Temperature, Thermal-Induced Distortion, VBG

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