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

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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:

Edited by:

Yuhang Yang, Xilong Qu, Yiping Luo and Aimin Yang

Pages:

587-591

DOI:

10.4028/www.scientific.net/AMR.216.587

Citation:

L. L. Gao "Modeling the Thermal Deformation of the Volume Bragg Grating in High-Power Beam Combining System", Advanced Materials Research, Vol. 216, pp. 587-591, 2011

Online since:

March 2011

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$38.00

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