Chongqing Optoelectronics Research Institute
文章针对200Gbit/s PAM4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。该封装方案内部集成了4路PAM4电/光转换通道,单通道数据传输速率为50Gbit/s。基于光发射组件封装方案,本文首先介绍了200Gbit/s PAM4光发射组件的组成部分和技术难点,然后根据技术难点对其中的50Gbit/s数据传输通道进行了建模、仿真和优化,最后完成了方案研制样品的测试,测试结果表明：方案样品的单通道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。
This paper proposes a package solution based on fourth-order Pulse Amplitude Modulation (PAM4) optical transmitting components, whose data transmission rate can reach 200Gbit/s, to meet the design requirements of 200Gbit/s PAM4 optical transceiver modules. The package solution integrates 4 PAM4 electrical/optical conversion channels, and the data transmission rate of each single channel is 50Gbit/s. Based on the packaging solution of optical transmitting components, this paper first introduces the components and technical difficulties of 200Gbit/s PAM4 optical transmitting components, and then according to the technical difficulties, the 50Gbit/s data transmission channel is modeled, simulated and optimized. Finally, the test of the sample is completed. The test result shows that for this solution, the data rate of a single PAM4 channel can reach 50Gbit/s, and the overall data rate of the PMA4 channels can reach 200Gbit/s, which can fully meet the design requirements of optical transceiver modules.