Packaging technology for four channel 200Gbit/s optical emission module based on PAM4

A packaging scheme for optical transmission modules based on PAM4 with a data transmission rate of up to 200Gbit/s is proposed to meet the design requirements of 200Gbit/s PAM4 optical transceiver modules. Package integrates four PAM4 electrical/optical conversion ways internally, with a single channel data transmission rate of 50Gbit/s. This article introduces the composition and technical difficulties of the 200Gbit/s PAM4 optical emission module, and then models, simulates, and optimizes the 50Gbit/s data transmission channel. Finally, the sample testing is completed. The test results show that the single channel PAM4 data rate of the sample can reach 50Gbit/s, and the overall PAM4 data rate can reach 200Gbit/s, meeting the design requirements of the optical transceiver module.