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Proceedings Paper

Characterization of an advanced harmonic subtraction single-photon detection system based on an InGaAs/InP avalanche diode
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Paper Abstract

We discuss the performance of a 1.25 GHz gated single-photon avalanche diode (SPAD) with bias gates of 150 ps FWHM and AC amplitude up to 25 V, a high-efficiency, high-speed SPAD system. This system uses an interferometric readout technique known as harmonic subtraction, and recent development efforts have enabled the use of up to the 4th harmonic of the gate to discriminate avalanche signals from the gate transient. With an improved design of the RF control system we have been able to demonstrate an ultra-low minimum detectable charge. We discuss the performance of this system, particularly its afterpulsing performance when counting at rates > 108 s-1. Systems of this type require unique characterization techniques, and we will discuss the methods we have developed for this purpose.

Paper Details

Date Published: 5 May 2016
PDF: 6 pages
Proc. SPIE 9858, Advanced Photon Counting Techniques X, 98580Q (5 May 2016); doi: 10.1117/12.2228331
Show Author Affiliations
Joshua C. Bienfang, Univ. of Maryland (United States)
National Institute of Standards and Technology (United States)
Alessandro Restelli, Univ. of Maryland (United States)
National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 9858:
Advanced Photon Counting Techniques X
Mark A. Itzler; Joe C. Campbell, Editor(s)

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