新型光电探测器的研究  

Study of the novel photodetectors

作　　者：王兴妍[1] 黄辉[1] 王琦[1] 黄永清[1] 任晓敏[1] 

机构地区：[1]北京邮电大学光通信中心,北京100876

出　　处：《通信学报》2004年第12期120-124,共5页Journal on Communications

基　　金：国家"863"基金资助项目(2003AA312020;2003AA31G050)国家自然基金资助项目(90201035)

摘　　要：针对RCE光电探测器存在的问题提出两种解决方案。将InP/空气隙的分布布拉格反射镜(DBR)结构引入RCE光探测器,只用1.5对InP/空气隙计算反射率约为95％,解决了长波长反射镜制备问题。所制备的器件,在波长1.585μm处获得了约54.5％的峰值量子效率,以及8GHz的3dB响应带宽。另一种引入斜镜结构解除了量子效率与超窄光谱响应线宽的相互制约。In this paper two structures had been proposed to resolve two problems of the resonant cavity enhanced photodetectors(RCEPD). Long wavelength RCE photodetectors with InP/air gap DBR was realized .The quantum efficiency of 54.5% at 1.585μm and 3dB bandwidth of 8GHz have been achieved. Another technique using the inclined-mirror structure makes the filtering and the absorption functions decoupled, thus narrow spectral response linewidth and high quantum efficiency can be achieved simultaneously.

关 键 词：RCE光电探测器 长波长 空气隙 斜镜 量子效率 

分 类 号：TN362[电子电信—物理电子学]