We report the development of a mid-board, TOSA and ROSA based miniature dual channel optical transmitter (MTx) and a transceiver (MTRx). The design transmission data rate is 5.12 Gbps per channel and receiving data rate 4.8 Gbps. MTx and MTRx are only 6 mm tall and are electrically and optically pluggable. Although the fiber TOSA/ROSA coupling is through a custom latch, the fiber uses the standard LC ferrule, flange and spring. Light coupling is ensured by the TOSA and ROSA with the LC coupling mechanism. With the dual channel serializer LOCx2 sits under MTx, one achieves high data transmission with a small PCB footprint, and enjoys the reliability of the hermetically packaged TOSA. MTx and MTRx are designed for detector front-end readout of the ATLAS Liquid Argon Calorimeter (LAr) trigger upgrade.
@article{arxiv.2009.08623,
title = {Mid-board miniature dual channel optical transmitter MTx and transceiver MTRx},
author = {Xiandong Zhao and Chonghan Liu and Datao Gong and Jinghong Chen and Di Guo and Huiqin He and Suen Hou and Guangming Huang and Xiaoting Li and Tiankun Liu and Xiangming Sun and Ping-Kun Teng and Le Xiao and Annie C. Xiang and Jingbo Ye},
journal= {arXiv preprint arXiv:2009.08623},
year = {2020}
}