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首页> 外文期刊>IEEE journal of selected topics in quantum electronics >Influence of thermal effect on output power optimization in fiber-coupled laser-diode end-pumped lasers
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Influence of thermal effect on output power optimization in fiber-coupled laser-diode end-pumped lasers

机译：热效应对光纤耦合激光二极管端泵浦激光器输出功率优化的影响

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摘要

A general model has been developed for the output power optimization of fiber-coupled laser-diode end-pumped lasers by including the thermal effect into the analysis. The optical path difference (OPD). Distribution has been derived as a function of the pump-beam quality, focus position of pumping light, and pump radius at the focal plane under the assumption that the end faces of the crystal are thermally insulated. With the derived OPD, the diffraction losses arising from thermal-induced spherical aberration have been estimated by the Strehl intensity ratio. The practical example of an Nd:YVO/sub 4/ laser pumped by a 1.2-W fiber-coupled laser diode is considered to illustrate the utility of the present model. Experimental results have shown a fairly good agreement with the theoretical predictions.
机译：通过将热效应纳入分析，已开发出用于优化光纤耦合激光二极管端泵激光器输出功率的通用模型。光程差（OPD）。假设晶体端面是隔热的，则根据泵浦光束质量，泵浦光的聚焦位置以及焦平面处的泵浦半径得出了分布。利用推导的OPD，已经通过Strehl强度比估计了由热引起的球差引起的衍射损耗。考虑了一个由1.2W光纤耦合激光二极管泵浦的Nd：YVO / sub 4 /激光器的实际示例，以说明本模型的实用性。实验结果表明与理论预测相当吻合。

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