A novel resonant cavity enhanced photodetector with flattop and steep-edge response  

作　　者：邸菁 黄永清 段晓峰 宋海兰 任晓敏 黄辉 王琦 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications,Ministry of Education,Beijing University of Posts and Telecommunications

出　　处：《Optoelectronics Letters》2010年第4期265-268,共4页光电子快报（英文版）

基　　金：supported by the National High Technology Research and Development Program of China (No. 2007AA03Z418);the Programof Key International Science and Technology Cooperation Projects (No. 2006DFB11110);the National "111" Project (No. B07005);the Program for Changjiang Scholars and Innovative Research Team in University,Ministry of Education (No. IRT0609)

摘　　要：A novel resonant cavity enhanced(RCE) photodetector with flat-top and steep-edge response is presented.The response is obtained by designing a gradient-thickness P area in the absorption cavity.Simulation results show that the maximum and minimum values of the quantum efficiency in bandpass are 85.242% and 87.564% respectively,the ripple is about 3.6%,and 0.5 dB,3 dB and 20 dB bandwidths are 0.3 nm,0.4 nm and 1.2 nm,respectively.The mesa area is 10 μm×10 μm and the frequency response bandwidth is 87 GHz.Compared with similar photodetectors,this photodetector has high quantum efficiency,narrow spectral response linewidth,good flat-top and steep-edge response and ideal high-speed characteristics.A novel resonant cavity enhanced（RCE） photodetector with flat-top and steep-edge response is presented.The response is obtained by designing a gradient-thickness P area in the absorption cavity.Simulation results show that the maximum and minimum values of the quantum efficiency in bandpass are 85.242% and 87.564% respectively,the ripple is about 3.6%,and 0.5 dB,3 dB and 20 dB bandwidths are 0.3 nm,0.4 nm and 1.2 nm,respectively.The mesa area is 10 μm×10 μm and the frequency response bandwidth is 87 GHz.Compared with similar photodetectors,this photodetector has high quantum efficiency,narrow spectral response linewidth,good flat-top and steep-edge response and ideal high-speed characteristics.

关 键 词：谐振腔增强型 光电探测器 平顶 量子效率 频率响应 光谱响应 转速特性 RCE 

分 类 号：TN36[电子电信—物理电子学]