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Proceedings Paper

Distortions from multi-photon triggering in a single CMOS SPAD
Author(s): Matthew W. Fishburn; Edoardo Charbon
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Paper Abstract

Motivated by the need for correct characterization and operation of single-photon avalanche diodes (SPADs), three methods for discriminating between single- and multi-photon triggering in a single CMOS SPAD are compared. The first method, utilizing a measurement of the avalanche's quench time, correctly distinguishes between avalanches initiated by one photon or 100 incident photons with p > 0.80 in single-shot measurements. The second method, which modulates the detector efficiency, correctly distinguished streams of pulses with single photons or 100 photons with p > 0.99, but is unable to provide a single-shot measurement. The third method, which examines distortions to the timing jitter's diffusion tail, requires knowledge of the incident timing jitter a priori and is unlikely to be useful in most systems. All compared methods are independent of one another, and show promise for distinguishing how many photons seed an avalanche.

Paper Details

Date Published: 22 May 2012
PDF: 7 pages
Proc. SPIE 8375, Advanced Photon Counting Techniques VI, 83750O (22 May 2012); doi: 10.1117/12.918397
Show Author Affiliations
Matthew W. Fishburn, Delft Univ. of Technology (Netherlands)
Edoardo Charbon, Delft Univ. of Technology (Netherlands)

Published in SPIE Proceedings Vol. 8375:
Advanced Photon Counting Techniques VI
Mark A. Itzler, Editor(s)

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