| 激光二极管端面泵浦激光晶体热效应研究 |
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| 引用本文： | 李明真,朱占收,于家峰,杨海莲,刘贵忠. 激光二极管端面泵浦激光晶体热效应研究[J]. 赣南师范学院学报, 2007, 28(3): 31-34 |
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| 作者姓名： | 李明真 朱占收 于家峰 杨海莲 刘贵忠 |
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| 作者单位： | 德州学院,物理系,山东,德州,253023 |
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| 摘 要： | 针对二极管激光器端面泵浦Nd:YVO4晶体工作特点,提出矩形各向异性激光晶体热模型.在晶体周边冷却,两通光面绝热情况下,通过求解泊松热传导方程,精确计算出矩形截面Nd:YVO4激光晶体的温度分布,进而求解Nd:YVO4激光晶体端面热膨胀量以及不同泵浦功率下的热焦距.研究结果表明,在泵浦功率为20 W时,激光晶体泵浦面最高升温503.4 K,最大热形变量5.42μm.对激光晶体温度场分布和端面热形变的研究,为解决晶体热效应提供了理论基础.
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| 关 键 词： | 激光晶体 Nd:YVO4晶体 端面泵浦 热效应 |
| 文章编号： | 1004-8332（2007）03-0031-04 |
| 收稿时间： | 2007-01-15 |
| 修稿时间： | 2007-01-152007-03-26 |
Study on Thermal Effect of LD End-pumped Laser Crystal |
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| LI Ming-zhen,ZHU Zhan-shou,YU Jia-feng,YANG Hai-lian,LIU Gui-zhong. Study on Thermal Effect of LD End-pumped Laser Crystal[J]. Journal of Gannan Teachers' College(Social Science(2)), 2007, 28(3): 31-34 |
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| Authors: | LI Ming-zhen ZHU Zhan-shou YU Jia-feng YANG Hai-lian LIU Gui-zhong |
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| Affiliation: | Department of Physics, Dezhou College, Dezhou 253023, China |
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| Abstract: | An anisotropic square thermal model of laser crystal was established,for the sake of the performance features of LD end pumped Nd: YVO4 crystal.The temperature fields distribution in Nd:YVO4 crystal has been obtained based on Poisson equation with surrounding cooled thermal model.The thermal distortion of the light-passing-face was calculated and the foci were obtained at different pump power.Study shows,the highest temperature on the facet of the crystal was 503 K and the thermal distortion was 5.42 when the pump power is 20W.Through the study on temperature fields distribution,facet distortion and the foci,the thermal effect can be solved theoretically. |
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| Keywords: | Laser crystal Nd:YVO4 crystal end-pumped Thermal effects. |
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