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InGaAsP vertical-cavity lasers

机译：InGaAsP垂直腔激光器

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Abstract: velength surface emitting lasers (LWSEL) have important applications in optical fiber communications due to their inherent single-longitudinal mode operation and the ease of coupling into fibers. The high packing density and wafer scale testing capability make them potential low cost sources for optical fiber systems. However, high Auger recombination rates inherent to long wavelength materials and technological problems in fabricating long wavelength DBR mirrors have slowed the development of LWSELs compared to that of (In)GaAs vertical cavity lasers. In this paper, we present results on two devices which have achieved the highest reported operation temperatures of LWSELs to date. In the first section we discuss an optically pumped InGaAsP laser utilizing a GaAs/AlAs mirror fused to the InGaAsP structure. These devices operate at temperatures as high as 144$DGR@C. The fusing process, room temperature lasing characteristics, and high temperature operation are discussed. In the next section, we present results of an electrically contacted, two-dielectric mirror structure which operates at temperatures as high as 66$DGR@C, the highest operation temperature of an electrically pumped laser to date. The room temperature and high temperature lasing characteristics are described, as are the effects of non-uniform injection in the active region. In the final section of the paper, we discuss design considerations for room temperature, CW operation.!8
机译：摘要：全长表面发射激光器（LWSEL）由于其固有的单纵向模式操作以及易于耦合到光纤中而在光纤通信中具有重要的应用。高封装密度和晶圆级测试能力使其成为光纤系统潜在的低成本来源。但是，与（In）GaAs垂直腔激光器相比，长波长材料固有的高俄歇复合率以及制造长波长DBR反射镜的技术问题已经减慢了LWSEL的发展。在本文中，我们介绍了迄今为止达到LWSEL最高工作温度的两种器件的结果。在第一部分中，我们讨论了利用融合到InGaAsP结构上的GaAs / AlAs镜的光泵浦InGaAsP激光器。这些器件的工作温度高达144 $ DGR @ C。讨论了定影过程，室温激光特性和高温操作。在下一部分中，我们介绍电接触的双电介质镜结构的结果，该结构在高达66 $ DGR @ C的温度下工作，这是迄今为止电泵浦激光器的最高工作温度。描述了室温和高温激光特性，以及在有源区中注入不均匀的影响。在本文的最后部分，我们讨论了室温，连续波操作的设计注意事项！8

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