Realization of a fully-integrated POF receiver with large-area photodetector in 0.5μm CMOS

Abstract

In this paper, a structure model of Spatially Modulated(SM)photodetector(PD) is accomplished in SILVOC-A. Optical spectrum response and AC characteristic of photodetector are simulated on the model. Based on the simulation, large-area PD are chosen for the monolithic integration with a trans-impedance amplifier and a preamplifier. A proposed monolithic optoelectronic integrated receivers are fabricated in 0.5um CMOS technology for 650nm plastic optical fiber communication. The simulation results show the gain of receiver is 70dB and −3dB bandwidth of receiver is 158MHz. The measurements of the two receiver are implemented. The receiver achieves a sensitivity of −15dBm with the bit-error-rate of 10-9 at 155Mb/s pseudo random binary sequence signal for 650nm input light. A clear eye diagram is demonstrated for 155Mb/s square signal.