Design of High-Speed Optical Receiver Module for 160Gb/s NRZ and 200Gb/s PAM4 Transmissions

Abstract

In this paper, we propose a high-speed optical receiver module with four channels. The optical receiver module was composed of a four-channel PIN photodiode array and a four-channel linear transimpedance amplifier on a six-layer printed circuit board (PCB). The top and bottom layers of the PCB were used as the high-speed layers. The grounded coplanar waveguide structure was designed on the PCB for high-speed data transmissions. The interface of the optical receiver module was designed as the QSFP28 pin definition. According to the eye diagram and bit-error rate measurements, the optical receiver module can be achieved 160 Gb/s NRZ and 200 Gb/s PAM4 transmissions over 1 km single mode fiber [1].