Extended Data Fig. 5: Few-photon laser ranging demonstration.
From: Demonstration of sub-3 ps temporal resolution with a superconducting nanowire single-photon detector
Table-top few-photon laser ranging setup based on a 1064 nm mode-locked laser and a low jitter SNSPD. The scanner used coaxial alignment of the transmit and return beam, using a circulator based on a polarizing beam splitter and a quarter wave-plate.
