基于PAM4调制的50Gbit/s BIDI光模块设计  

Design of 50Gbit/s BIDI optical transceiver based on PAM4 modulation

作　　者：陈春山 林韬 徐红春 王飚 孙莉萍 CHEN Chunshan;LIN Tao;XU Hongchun;WANG Biao;SUN Liping(Wuhan Research Institute of Posts and Telecommunications,Wuhan 430074,China;Accelink Technologies Co.,Ltd.,Wuhan 430074,China)

机构地区：[1]武汉邮电科学研究院,湖北武汉430074 [2]武汉光迅科技股份有限公司,湖北武汉430074

出　　处：《电子设计工程》2020年第20期102-105,110,共5页Electronic Design Engineering

摘　　要：基于PAM4(4 Pulse Amplitude Modulation,4阶脉冲幅度调制)技术设计了一款50G QSFP单纤双向光模块,用以满足5G网络建设前传网中带宽需求大、光纤资源紧张、速率需求增加的现状。使用BOSA光器件实现单纤双向(BIDI,Bidirectional)传输提高光纤资源利用率;使用PAM4调制技术实现25G光器件传输50G信号,达成单波长速率翻倍;通过眼图及抖动压力测试验证性能满足IEEE802.3cd中50GE以太网相关要求,能稳定进行10 km信息传输。Based on PAM4(4 Pulse Amplitude Modulation)Technology,a 50G QSFP bidirectional optical transceiver was designed to meet the current situation of large bandwidth requirements,tight fiber resources,and increased speed requirements in the 5G fronthaul network construction.This module can improve the utilization ratio of optical fiber resources by using Bosa optical device to realize bidirectional transmission of single fiber.It can realize that 25G optical device can transmit 50G signal and double the single wavelength rate by using PAM4 modulation technology.The eye chart and jitter pressure test show that the performance meets the requirements of 50GE Ethernet in IEEE802.3 cd,and can transmit 10km information stably.

关 键 词：PAM4 单纤双向 光模块 5G网络 

分 类 号：TN29[电子电信—物理电子学]