We present the design and the test results of a quad-channel optical transceiver module (QTRx) possibly for future particle physics experiments. The transmitters of QTRx, each at 10 Gbps, are based on a Quad-channel VCSEL Diode array Driver (QLDD) and 1 x 4 VCSEL array. The receivers of QTRx, with data rates of 2.56 Gbps or 10 Gbps per channel, are based on a Quad-channel Trans-Impedance and limiting Amplifier (QTIA) and 1 x 4 photodiode array of GaAs or InGaAs. QTRx is 20 mm x 10 mm x 5 mm and couples to an MT fiber connector. Test results indicate that QTRx achieves the design goals with a power consumption of 124 mW per transmitter channel at 10 Gbps and 120 mW at 2.56 Gbps for the receiver channel with an on-chip charge pump. The sensitivities of QTIA are -17 dBm at 2.56 Gbps and -8 dBm at 10 Gbps, respectively. Further improvements with a gold-finger interface and a more compact optical lens are being designed.
@article{arxiv.2203.06277,
title = {A 40 Gbps Optical Transceiver for Particle Physics Experiments},
author = {B. Deng and X. Huang and H. Sun and C. -P. Chao and S. -W. Chen and D. Gong and S. Hou and G. Huang and C. -Y. Li and C. Liu and T. Liu and Q. Sun and J. Ye and L. Zhang and W. Zhang},
journal= {arXiv preprint arXiv:2203.06277},
year = {2022}
}