Open AccessAbsolute calibration of a single-photon avalanche detector using a bright triggered single-photon source based on an InGaAs quantum dot
Author(s) -
Hristina Georgieva,
Marco López,
Helmut Hofer,
Niklas Kanold,
Arsenty Kaganskiy,
Sven Rodt,
Stephan Reitzenstein,
S. Kück
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.430680
Subject(s) - physics , photon , optics , avalanche photodiode , detector , photon counting , quantum dot , optoelectronics
We apply an InGaAs quantum dot based single-photon source for the absolute detection efficiency calibration of a silicon single-photon avalanche diode operating in Geiger mode. The single-photon source delivers up to (2.55 ± 0.02) × 10 6 photons per second inside a multimode fiber at the wavelength of 929.8 nm for above-band pulsed excitation with a repetition rate of 80 MHz. The purity of the single-photon emission, expressed by the value of the 2 nd order correlation function g (2) (τ = 0), is between 0.14 and 0.24 depending on the excitation power applied to the quantum dot. The single-photon flux is sufficient to be measured with an analog low-noise reference detector, which is traceable to the national standard for optical radiant flux. The measured detection efficiency using the single-photon source remains constant within the measurement uncertainty for different photon fluxes. The corresponding weighted mean thus amounts to 0.3263 with a standard uncertainty of 0.0022.