An overview of optical receiver module performance for eye-safe range finding, and lidar applications based on novel InGaAs APDs

摘要

Interest in eye-safe range-finding and lidar applications at 1060nm and 1550nm has increased dramatically in the last couple of years. However, APD receiver module performance has remained constant. This paper will present results from the characterization of an eye-safe module based on novel ultra -low excess noise InGaAs APD's. The design basics of the APD and circuit will be discussed, with key performance characteristics highlighted. The principle of APD excess noise will be reviewed, and the effect it has on receiver module performance will be illustrated. A comparison of module performance between different receiver modules will be summarized.