A compact radiation-tolerant array optical transmitter module (ATx) is developed to provide data transmission up to 10Gbps per channel with 12 parallel channels for collider detector applications. The ATx integrates a Vertical Cavity Surface-Emitting Laser (VCSEL) array and driver circuitry for electrical to optical conversion, an edge warp substrate for the electrical interface and a micro-lens array for the optical interface. This paper reports the continuing development of the ATx custom package. A simple, high-accuracy and reliable active-alignment method for the optical coupling is introduced. The radiation-resistance of the optoelectronic components is evaluated and the inclusion of a custom-designed array driver is discussed.
@article{arxiv.2401.15749,
title = {The VCSEL-based Array Optical Transmitter (ATx) Development Towards 120-Gbps Link for Collider Detector: Development Update},
author = {Di Guo and Chonghan Liu and Jinghong Chen and John Chramowicz and Datao Gong and Suen Hou and Deping Huang and Ge Jin and Xiaoting Li and Tiankuan Liu and Alan Prosser and Ping-Kun Teng and Jingbo Ye and Yongzhao Zhou and Yang You and Annie C. Xiang and Hao Liang},
journal= {arXiv preprint arXiv:2401.15749},
year = {2024}
}