Sensors Expo & Conference 2019

SPAD Arrays with Background Light Suppression

Detector for Flash LiDAR systems

Conventional LiDAR scanners use a failure-prone mechanism with rotating mirrors. Flash LiDAR technology, however, uses highly-sensitive 2D single-photon avalanche diode (SPAD) arrays. With a resolution of 2 x 192 pixels and noise < 50 cps, these components are around 106 (one million) times more sensitive than the photodiodes integrated in smartphones, for example.

Unlike classic LiDAR, the arrays do not detect just one point; each individual pixel provides information on the position. In addition, the sensor and evaluation electronics have been mounted on the same chip for the first time. This makes this new development particularly space saving. For example, car manufacturers could install it behind windshields or headlights.