基于无源耦合技术的高速并行光接收模块的设计与实现  

The design and implementation of a high speed parallel optical receiver module based on passive coupling

作　　者：唐君[1] 陈雄斌[1] 鲁琳[1] 裴为华[1] 刘丰满[1] 陈弘达[1] 

机构地区：[1]中国科学院半导体研究所集成光电子学国家重点联合实验室,北京100083

出　　处：《高技术通讯》2011年第12期1318-1322,共5页Chinese High Technology Letters

基　　金：863计划（2007AA032454,2007AA0122A5）和国家科技支撑计划（2009BAK43836）资助项目.

摘　　要：提出了一种实现高速并行光接收模块中光电探测器（PD）列阵与光纤列阵精密无源耦合对准的方法，设计并制作了用于这种光学精密对准的所有组件，并用此耦合对准方法完成了PD阵列与光纤阵列之间的光耦合，制作出了12信道并行光接收模块。耦合完成的PD列阵与光纤列阵的对准误差小于1μm，从光纤列阵耦合进入PD列阵的光功率耦合效率大干80％。此模块采用工作波长为850nm的高速PIN型PD列阵作为光接收器件，输入光信号直接由12信道的光纤阵列耦合进入PD列阵中。此并行光接收模块的单信道传输速率大于等于3．318Gbit／s，12信道并行总传输速率为40Gbit／s。与有源耦合方法相比，此无源耦合技术简化了耦合步骤，减少了耦合时间，提高了耦合可靠性，适用于规模化生产。An advanced structure of passive optical coupling for the application of optical interconnect with the high cou- pling efficiency and the high alignment precision was proposed, and a 12-channel high-speed parallel optical receiv- er module based on this advanced coupling technique was designed and fabricated using an 850nm GaAs photoelec- tric detector （PD） array and a fiber array. The error amount of coupling was less than 1 Ixm and the coupling effi- ciency was more than 80 percent. The optical signals was directly coupled into PD array through a fiber array. We got a wide open eye diagram with data rate of 3. 318Gbit/s for each channel and the total data rate of 40Gbit/s from the receiver module. Compared with active optical coupling, the passive optical coupling simplified the coupling process and enhanced the work efficiency. It＇ s suited for large-scale production.

关 键 词：耦合 并行光传输 光纤阵列 接收模块 

分 类 号：TN929.11[电子电信—通信与信息系统]