| 非球面透镜弥补棒状激光晶体热效应的研究 |
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| 引用本文： | 赵存华,刘照军,王松德.非球面透镜弥补棒状激光晶体热效应的研究[J].红外与激光工程,2011,40(3):533-538. |
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| 作者姓名： | 赵存华 刘照军 王松德 |
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| 作者单位： | 洛阳师范学院物理与电子信息学院,河南,洛阳,471022 |
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| 基金项目： | 河南省科技计划项目，河南省教育厅科技计划项目，洛阳市科技计划项目，洛阳师范学院应用科学与技术研究基金 |
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| 摘 要： | 研究了激光二极管侧面泵浦Nd:YAG晶体的热效应.通过热传导方程,获得了Nd:YAG晶体内部的温度分布.分析了温度梯度和热应力对激光棒的影响,得到了在激光器运行时激光棒内的折射率分布.在谐振腔内,作为光学元件的激光晶体必然产生像差.计算了Nd:YAG晶体棒沿径向的光学路径差(OPD)用以量化像差.通过实例演示了此种方法...
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| 关 键 词： | 热效应 光学路径差 折射率 非球面 |
Compensation of thermal effects of rod-like laser crystal by aspheric singlet |
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| Zhao Cunhua,Liu Zhaojun,Wang Songde.Compensation of thermal effects of rod-like laser crystal by aspheric singlet[J].Infrared and Laser Engineering,2011,40(3):533-538. |
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| Authors: | Zhao Cunhua Liu Zhaojun Wang Songde |
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| Abstract: | The thermal effects of laser diode side -pumped Nd:YAG crystal lasers were studied. Temperature distribution in the Nd:YAG crystal was obtained by using heat conductive equation. The influences of temperature distribution and induced thermal stress in the laser rod were analyzed and the index distribution in the laser rod was obtained when laser was operating. As an optical element in resonator, laser crystal must produce aberrations. Optical path difference (OPD) of the Nd:YAG rod along radius was calculated for quantifying the aberrations. At last, a substantial example in virtue of OPD theory demonstrates that how to instructe laser design optimization. An aspheric singlet was designed to compensate thermal effects of rod-like Nd:YAG. And it's aspheric surface type was accurately obtained. |
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| Keywords: | thermal effect optical path difference index aspheric surface |
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