光通信链路中集成芯片的收发一体工作  

Integrated Chip for Simultaneous Transmission and Reception in Optical Communication Links

作　　者：罗俊伟 刘凯[1] 位祺 黄永清[1] 段晓峰[1] 王琦[1] 任晓敏[1] 蔡世伟[1] Luo Junwei;Liu Kai;Wei Qi;Huang Yongqing;Duan Xiaofeng;Wang Qi;Ren Xiaomin;Cai Shiwei(State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,Beijing,100876)

机构地区：[1]北京邮电大学信息光子学与光通信国家重点实验室

出　　处：《光学学报》2019年第8期56-62,共7页Acta Optica Sinica

基　　金：国家自然科学基金(61874147)

摘　　要：在PIN光电探测器(PIN-PD)结构的垂直方向上集成垂直腔面发射激光器(VCSEL)结构单元,实现了收发一体式工作的集成光电芯片对,可用于进一步提高光互连的性能。该集成光电芯片可以同时对两个波段进行收发一体工作,一端进行中心波长为805 nm的光信号的发送和中心波长为850 nm的光信号的接收,另一端进行中心波长为850 nm的光信号的发送和中心波长为805 nm的光信号接收。仿真优化805 nm波长处光信号发送端的结构与性能,理论分析结构中VCSEL单元和PIN-PD单元工作时的电学隔离和光学解耦,最终证实本结构可以同时进行收发一体的工作。This paper proposes an integrated optoelectronic chip pair that can simultaneously receive and transmit signals by integrating a vertical cavity surface emitting laser(VCSEL)unit in the vertical direction of a PIN photodetector(PIN-PD)unit.The two units can transmit in two bands at the same time.In particular,one terminal can transmit and receive optical signals at the central wavelengths of 805 and 850 nm,respectively;the other terminal can transmit and receive optical signals at the central wavelengths of 850 and 805 nm,respectively.This study mainly introduces and optimizes the structure and performance of one end of the optical signal transmission at the wavelength of 805 nm and theoretically analyzes the electrical isolation and optical decoupling of the VCSEL and PIN-PD units,which further ensures that the structure can work as a transceiver at the same time.

关 键 词：光通信 光电集成 光电探测器 激光器 垂直腔面发射激光器 光互连 

分 类 号：TN256[电子电信—物理电子学]