基于对称型光电检测阵列的高速光电耦合器的设计  

High-speed and High-sensitivity Optical Couplers Based on Photo Detectors with Symmetrical Structure

作　　者：田磊[1,2] 

机构地区：[1]西安邮电大学电子工程学院,西安710121 [2]西北大学现代物理研究所,西安710069

出　　处：《半导体光电》2016年第5期632-635,共4页Semiconductor Optoelectronics

基　　金：陕西省教育厅专项科研计划项目(15JK1676);西安邮电大学青年教师基金重点项目(101-0488);西安市社会科学规划基金重点项目(21015EA03)

摘　　要：研制了一种具有高响应速度的光电耦合器芯片,采用Nbody-Nwell-Psub模型构建了具有对称结构的光电探测阵列(PD),在完成光电转换的前端处理的过程中,缩短了光电转换的响应时间,提高了光电耦合器整片的响应速度。详细设计了PD的结构,并对使用该结构的光电耦合器整片进行了仿真和实测。实测结果表明,整片器件的上升时间为16ns,下降时间为14ns,上升传输时延为205ns,下降时延为155ns,芯片整体运行正常,可用于高速响应的控制系统中。Designed and fabricated was a high speed optocoupler chip, and the symmetrical photoelectric detector with the ＂Nbody-Nwell-Psub＂ model was established. Thus, during the process of photoelectric conversion, the response time of the conversion is shortened and the whole chip＇ s response speed is improved. The PD model was designed and the symmetrical photoelectric detector was constructed. Simulation results show, the rise time, the fall time, the rise time delay and the decline time delay of the whole chip is 16, 14, 205 and 155 ns, respectively. The chips work well and suitable for high speed control systems.

关 键 词：高速响应 光电耦合器 光电检测阵列 对称结构 响应时间 

分 类 号：TN36[电子电信—物理电子学]