Numerical modeling of the thermal lensing effect in a grazing-incidence laser |
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Authors: | Xingpeng Yan Mali Gong Fahong He Qiang Liu Xing Fu Dongsheng Wang |
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Affiliation: | Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instruments and Mechanology, Tsinghua University, Room 2307, Building 9003, Beijing 100084, PR China |
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Abstract: | The numerical modeling of thermal lensing effect is investigated in a grazing-incidence laser. The deformation of the bounce face is introduced into the modeling for the first time, and the Gaussian distribution of the pump light and the anisotropic heat conduction are considered. The results indicate that the proportion of the deformation on the bounce face to the thermal lensing effect is as high as 80% for small grazing-incident angle of 5°. The thermal lensing effect sensitively depends on the pump power, grazing-incident angle and the pump distribution in a grazing-incidence bounce geometry laser. |
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Keywords: | 42 55 Xi 44 05 +e 78 20 Nv |
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