400G光收发模块优化设计  

Optimized design of 400G optical transceiver module

作　　者：聂嵩 贾建刚 刘超 NIE Song;JIA Jiangang;LIU Chao(Hebei Huamei Optoelectronics Co.,Ltd.,Zhangjiakou Hebei 075499,China)

机构地区：[1]河北华美光电子有限公司,河北张家口075499

出　　处：《光通信技术》2023年第5期53-57,共5页Optical Communication Technology

摘　　要：为了进一步提高光模块光学耦合效率和出光光功率,设计和优化了400G光收发模块,使用带有透镜的无源器件作为光学耦合的重要部件,以提高耦合效率;采用输入/输出缓冲区信息规范(IBIS)模型对光模块的高频电路进行分析与优化;最后,对光模块进行了光学设计、链路仿真和测试。测试结果表明:设计的光收发模块眼图较为清晰,光眼图抖动为2.3 ps左右,各个通道具有较好的一致性,202 s内无误码;信号传输100 m后,未出现丢包情况,系统性能比较稳定。In order to further improve the optical coupling efficiency and output power of the optical module,a 400G optical transceiver module is designed and optimized.A passive device with a lens is used as an important part of the optical coupling to improve the coupling efficiency.The input/output buffer information specification(IBIS)model is used to analyze and optimize the high frequency circuit of optical module.Finally,the optical design,link simulation and test of the optical module are carried out.The test results show that the designed optical transceiver module eye image is clear,the optical eye image jitter is about 2.3 ps,each channel has a good consistency,no error code within 202 s.After the signal is transmitted for 100 m,no packet loss occurs,and the system performance is stable.

关 键 词：光模块 多路并行收发驱动电路 短距离传输 印制电路板埋铜技术 

分 类 号：TN929.1[电子电信—通信与信息系统]