Application Guides
How Phlux’s Noiseless InGaAs APDs Improve Rangefinders
Introduction
This application guide explains the operation of rangefinders and how they can significantly benefit from using Phlux’s range of Noiseless InGaAs APDs. By using antimony alloy within the APD structures, Phlux has developed an APD with high internal gain and the lowest excess noise. Many laser rangefinder (LRF) systems require a large receiver lens to collect enough photons to overcome the weakness of the return signal. When the Phlux APD is used in a real-world LRF system design it is possible to extend the range by up to 50%, allowing for smaller, lower cost, and more robust devices to be developed. Operating principle of a laser rangefinder …
