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首页> 外文期刊>Microelectronics journal >Investigation Of Thermal Management In Optically Pumped, Antimonide Vecsels
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Investigation Of Thermal Management In Optically Pumped, Antimonide Vecsels

机译:光泵浦锑化物容器中的热管理研究

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In this work, an optical modulation spectroscopy technique: thermoreflectance has been employed to study temperature distributions on the surface of optically pumped vertical external cavity surface emitting lasers (VECSELs). The thermoreflectance is based on the relative change of reflectivity of the sample induced by the change of its temperature. In this case the temperature change of the sample is induced by operating the pump in pulse mode. We have investigated samples with and without intracavity heatspreader. The resulting temperatures and temperature distributions on the sample surface have been measured and compared with theoretical calculations. The results confirm the effectiveness of silicon carbide (SiC) heatspreader approach. This is also a first report on the direct temperature mapping on VECSELs, with micron spatial resolution.
机译:在这项工作中,使用了一种光学调制光谱技术:热反射技术研究了光泵浦垂直外腔表面发射激光器(VECSEL)的表面温度分布。热反射率是基于温度变化引起的样品反射率的相对变化。在这种情况下,样品的温度变化是通过以脉冲模式运行泵引起的。我们研究了带有和不带有腔内散热器的样品。测量所得的温度和样品表面的温度分布,并将其与理论计算进行比较。结果证实了碳化硅(SiC)散热器方法的有效性。这也是有关具有微米空间分辨率的VECSEL上直接温度映射的第一份报告。

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