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Proceedings Paper

InGaAs/InP single-photon counting module running up to 133 MHz
Author(s): A. Tosi; A. Della Frera; A. Bahgat Shehata; C. Scarcella; F. Acerbi; F. Zappa
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Paper Abstract

We present new circuital solutions for operating InGaAs/InP SPADs at high speed with very fast avalanche quenching time. A compact wide-band pulse generator (mounted close to the detector) is able to gate the SPAD at a repetition frequency from 200 Hz up to 133 MHz. An adjustable amplitude gate-driver allows to trade-off between photon detection efficiency and dark count rate, while a variable gate-width precisely selects the time interval during which the detector is ON. A fast avalanche-quenching scheme, working on both SPAD's anode and cathode, is able to minimize quenching action to less than 1 ns, thus effectively reducing afterpulsing through a decreased total charge flowing through the junction. We integrated all such circuits into a compact detection module, together with a previouslyreported differential read-out electronics for low time-jitter response. The performance of the overall module is good in many different setting points, thus being able to satisfy a wide variety of applications.

Paper Details

Date Published: 20 January 2012
PDF: 6 pages
Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82681S (20 January 2012); doi: 10.1117/12.908406
Show Author Affiliations
A. Tosi, Politecnico di Milano (Italy)
A. Della Frera, Politecnico di Milano (Italy)
A. Bahgat Shehata, Politecnico di Milano (Italy)
C. Scarcella, Politecnico di Milano (Italy)
F. Acerbi, Politecnico di Milano (Italy)
F. Zappa, Politecnico di Milano (Italy)

Published in SPIE Proceedings Vol. 8268:
Quantum Sensing and Nanophotonic Devices IX
Manijeh Razeghi; Eric Tournie; Gail J. Brown, Editor(s)

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