As LiDAR systems gain acceptance in autonomous vehicles, it will be essential to understand the impact of temperature on their sensors. These sensors must operate accurately and reliably in a variety of environmental conditions. Typically, automotive grade 1 operating temperature range from -40°C to 125°C is required. This temperature range is needed for functionality considering sun-exposed positions for the sensor, self-heating of electron-ics inside the sensor and various ambient conditions worldwide.
The avalanche photo diode (APD) is a popular sensor technology that is rapidly becoming incorporated in LiDAR systems. This report provides information about typical APD properties for a range from -40° C to 125° C.