Characterization of A Novel Avalanche Photodiode for Single Photon Detection in VIS-NIR Range

TL;DR

This paper characterizes a new avalanche photodiode, SAP500, for single photon detection in the visible to near-infrared range, demonstrating improved efficiency and timing over standard devices.

Contribution

It provides a comprehensive analysis of the SAP500's performance in Geiger mode, highlighting its advantages over existing SPADs.

Findings

Higher detection efficiency in 400-1000nm range

Lower dark counts and afterpulsing

Better timing jitter compared to standard SPADs

Abstract

In this work we investigate operation in the Geiger mode of the new single photon avalanche photo diode (SPAD) SAP500 manufactured by Laser Components. This SPAD is sensitive in the range 400-1000nm and has a conventional reach-through structure which ensures good quantum efficiency at the long end of the spectrum. By use of passive and active quenching schemes we investigate detection efficiency, timing jitter, dark counts, afterpulsing, gain and other important parameters and compare them to the "standard" low noise SPAD C30902SH from Perkin Elmer. We conclude that SAP500 offers better combination of detection efficiency, low noise and timing precision.