18 February 2009 Numerical study on mirror of high power laser with heatpipe cooling
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Abstract
Mirror surface of high power laser would be deformed by the pressure of the coolant in a liquid cooling mirror system. In order to eliminate the impact of pressure and vibration of cooling water to the stability of the output beam, a cooling mirror with heatpipe is designed. With the same structure and conditions, solid mirror, water cooling mirror and heat pipe cooling mirror are simulated by ANSYS program. The time-varying thermal deformations of the group mirrors after 60s under the net heat absorption of 12W/cm2 are obtained. The maximal peak and valley difference value of mirror surface deformation of solid mirror along Z-axis, water cooling mirror and heat pipe cooling mirror after 60s is 1.33μm, 0.845 μm and 0.1094 μm respectively.
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Jiayuan Chen, Jiayuan Chen, Haihong Zhu, Haihong Zhu, Zuhai Cheng, Zuhai Cheng, } "Numerical study on mirror of high power laser with heatpipe cooling", Proc. SPIE 7276, Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications, 727618 (18 February 2009); doi: 10.1117/12.822659; https://doi.org/10.1117/12.822659
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