keywords AVALANCHE-DIODE EFFICIENCY Engineering Engineering, Electrical & Electronic FLASH LIDAR Light detection and ranging (LiDAR) OPTICAL PHASED-ARRAY Optics Physical Sciences Physics Physics, Applied Quantum Science & Technology RANGE RESOLUTION SCANNING MIRROR SENSOR SPAD Science & Technology TECHNOLOGY Technology silicon photomultipliers (SiPMs) single-photon avalanche didoes (SPADs) time-to-digital converters (TDCs)