A 40 Gbps optical transceiver for particle physics experiments

作者：Deng, B.; Huang, X.; Sun, H.; Chao, C-P; Chen, S-W; Gong, D.; Hou, S.; Huang, G.; Li, C-Y; Liu, C.; Liu, T.^*; Sun, Q.; Ye, J.; Zhang, L.; Zhang, W.

来源：Journal of Instrumentation, 2022, 17(5): C05005.

DOI：10.1088/1748-0221/17/05/C05005

• Front-end electronics for detector readout
• Modular electronics
• Radiation-hard electronics

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 per 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.

• 单位
  中国科学院