量子级联激光器的热管理研究进展

作为目前最重要的中远红外光源,量子级联激光器(QCL)因独特的性能和频率可拓展至太赫兹(THz)的特点,成为研究的热点.对于QCL,影响其输出功率和工作温度的因素较多,其中高效散热是重要的因素.首先对中红外和太赫兹两种QCL的热管理研究进行了归纳和总结;讨论和分析了两者之间的相似和不同点,主要讨论两种激光器固体侧散热的...

The progress of Quantum Cascade Lasers thermal management

As the most important mid-infrared source at present, Quantum Cascade Lasers(QCL) has become one of the research hotspots due to its unique performance and frequency that can be extended to terahertz(THz). For QCL, there are many factors affecting their output power and operating temperature, and efficient heat dissipation is an important factor. In this paper, the thermal management research of two kinds of QCL including mid-infrared and terahertz is summarized. Secondly, the similarities and differences between the two are discussed and analyzed. Two methods of heat dissipation on the solid side of lasers are mainly discussed, including active areas design, processes improvement, and the optimization of device material systems. Finally, the future research trends of thermal management of QCL are analyzed and predicted. This result has certain reference significance for the performance improvement of QCL, especially the improvement of output power and working temperature.