Crosstalk calibration of multi-pixel photon counters using coherent states

TL;DR

This paper introduces a new calibration method for multi-pixel photon counters using coherent light to measure crosstalk probability, which is more versatile and advantageous than traditional dark noise-based methods.

Contribution

A novel calibration technique for MPPCs using the normalized second-order intensity correlation function of coherent light, applicable to various spatially resolved single photon detectors.

Findings

The method accurately measures crosstalk probability in MPPCs.

It outperforms traditional dark noise calibration methods.

Applicable to different types of single photon detectors.

Abstract

We present a novel method of calibration of crosstalk probability for multi-pixel photon counters (MPPCs) based on the measurement of the normalized second-order intensity correlation function of coherent light. The method was tested for several MPPCs, and was shown to be advantageous over the traditional calibration method based on the measurements of the dark noise statistics. The method can be applied without the need of modification for different kinds of spatially resolved single photon detectors.