三维成像用128×2线性模式APD焦平面探测器设计  

A Design of 128×2 Linear Mode APD Detector for 3D Imaging

作　　者：邓光平[1] 马华平 鹿婷婷 黄建[1] 王颖[1] DENG Guangping;MA Huaping;LU Tingting;HUANG Jian;WANG Ying(Chongqing Optoelectronics Research Institute,Chongqing 400060,CHN)

机构地区：[1]重庆光电技术研究所,重庆400060

出　　处：《半导体光电》2020年第6期784-787,共4页Semiconductor Optoelectronics

摘　　要：设计了一种用于激光三维成像的128×2线性模式APD焦平面探测器,器件包括硅基APD焦平面阵列和读出电路。硅基APD焦平面阵列采用拉通型n+-p-π-p+结构,像元中心距为150μm,工作在线性倍增模式。读出电路采用单片集成技术,将前置放大电路、TDC计时电路和ADC等功能模块集成在单一硅片上。整个线性模式APD焦平面探测器可实现128×2阵列规模的激光信号并行检测,并采用LVDS串口输出激光脉冲信号的飞行时间信息和峰值强度信息。测试结果显示,该线性模式APD三维成像探测器可同时获取时间信息和强度信息,成像功能正常。A kind of 128×2 linear mode APD focal plane detector used for 3 Dimaging is designed,including Si-based APD focal plane array(FPA)and read-out circuit.The APD FPA with the structure of punch through n+-p-π-p+works at the linear multiply mode,and the pixel pitch is 150μm.The readout integrated circuit(ROIC)integrates the pre-amplifier,TDC,ADC and other function circuits on a single chip.The linear mode APD detector can simultaneously detect the laser pulse of 128×2 imaging array,then output the flight time and the amplitude of the laser pulse by using the LVDS driver.The test results show that the linear 3 Dimaging detector can obtain necessary information properly,verifying its effectiveness in imaging.

关 键 词：雪崩光电二极管 读出电路 焦平面阵列 三维成像 激光雷达 

分 类 号：TN312.7[电子电信—物理电子学]