Gated InGaAs Detector Characterization with Sub-Picosecond Weak Coherent Pulses

Gautam Kumar Shaw, Shyam Sridharan, Anil Prabhakar

We propose and demonstrate a method to characterize a gated InGaAs single-photon detector (SPD). Ultrashort weak coherent pulses, from a mode-locked sub-picosecond pulsed laser, we…