An analytical, two‐dimensional, stationary model of heat flow in edge‐emitting laser is revisited. In the work, we show how to use this approach to be able to calculate the temperature of the entire device including the most susceptible for thermal runaway region, namely the vicinity of the joint of mirrors and an active layer. Numerical tools based on our considerations are implemented in Matlab code and available at the software developer's web site. A procedure of investigation of surface recombination at facets with the help of our model combined with mirror temperature measurements is proposed. To get an insight in reasonableness of our theoretical research, we calculated temperature profiles and surface recombination velocities for example devices and successfully confronted them with results found in the literature.

中文翻译：

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重新研究边缘发射激光器中的热流二维模型：一种新的，更通用的方法

重新研究了边缘发射激光器中的二维热流动解析模型。在工作中，我们展示了如何使用这种方法来计算整个设备的温度，包括最容易受热失控区域影响的温度，即镜子和有源层接合处附近。基于我们的考虑的数值工具在Matlab代码中实现，并可以在软件开发人员的网站上找到。提出了借助我们的模型结合反射镜温度测量方法研究小平面上表面重组的方法。为了深入了解我们理论研究的合理性，我们计算了示例器件的温度曲线和表面复合速度，并成功地将其与文献中发现的结果相抗衡。