收稿日期:2022-09-20.*通信作者:周本军E-mail:860232889@qq.com光电器件DOI:10.16818/j.issn1001-5868.2022092002200Gbit/sPAM4光发射组件封装技术研究周本军*,胡伟,胡俊豪(重庆光电技术研究所,重庆400060)摘要:针对200Gbit/sPAM4光收发模块的设计需求,提出了一种基于四阶脉冲幅度调制(PAM4)、数据传输速率达200Gbit/s的光发射组件封装方案。该封装内部集成了4路PAM4电/光转换通道,单通道数据传输速率为50Gbit/s。介绍了该200Gbit/sPAM4光发射组件的组成和技术难点,然后对其中的50Gbit/s数据传输通道进行了建模、仿真和优化,最后完成了样品的测试。测试结果表明:样品的单通道PAM4数据速率可达50Gbit/s,整体PAM4数据速率可达200Gbit/s,满足光收发模块的设计需求。关键词:200Gbit/s;PAM4;光发射组件;光收发模块中图分类号:TN303文章编号:1001-5868(2023)01-0049-04Researchon200Gbit/sPAM4OpticalTransmitterPackagingTechnologyZHOUBenjun,HUWei,HUJunhao(ChongqingOptoelectronicsResearchInstitute,Chongqing400060,CHN)Abstract:Apackagesolutionbasedonfourth-orderpulseamplitudemodulation(PAM4)opticaltransmittingcomponentsisproposed,whosedatatransmissionratecanreach200Gbit/s,tomeetthedesignrequirementsof200Gbit/sPAM4opticaltransceivermodules.ThepackagesolutionintegratedfourPAM4electrical/opticalconversionchannels,andthedatatransmissionrateofeachsinglechannelwas50Gbit/s.Basedonthepackagingsolutionofopticaltransmittingcomponents,firstly,thecomponentsandtechnicaldifficultiesof200Gbit/sPAM4opticaltransmittingcomponentswereintroduced.Then,accordingtothetechnicaldifficulties,the50Gbit/sdatatransmissionchannelwasmodeled,simulatedandoptimized.Finally,thetestofthesamplewascompleted.Thetestresultsshowthatforthissolution,thedatarateofasinglePAM4channelcanreach50Gbit/s,andtheoveralldatarateofthePMA4channelscanreach200Gbit/s,whichcanfullymeetthedesignrequirementsofopticaltransceivermodules.Keywords:200Gbit/s;PAM4;TOSA;opticaltransceivermodule0引言在光收发模块设计中,传统的NRZ采用“0”、“1”编码,每个电平代表1bit数据信息。PAM4采用脉冲幅度调制,使用“00”、“01”、“10”和“11”的方式编码,每个电平代表2bit数据信息。因此,在相同波特率情况下,PAM4编码格式传输的...
