Intel Corporation
ON-CHIP BACK REFLECTION FILTERING

Abstract:

Filter circuitry is provided for use with a light detection and ranging (Lidar) device implemented using silicon photonics. The filter circuitry includes high-pass filter circuitry to receive a signal from a photodetector of the lidar device and attenuate a lower frequency portion of the signal, where the lower frequency portion of the signal is the result of optical back reflections within the lidar device.