Active-Quenching and Gating Circuits for Single-Photon Avalanche Diodes (SPADs)
- 1 January 1982
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 29 (1) , 599-601
- https://doi.org/10.1109/tns.1982.4335917
Abstract
Single-photon detection by avalanche photodiodes with uniform breakdown over the junction area (single--photon avalanche diodes SPADs) is well known. The active quenching method, introduced by the authors, has been shown to avoid drawbacks of passive-quenching circuits and provide accurate operation of the devices. New active-quenching circuits are here presented. Dead times below 20 ns are obtained. A fast gating control acting directly on the photodetector has been developed, in view of timing studies with closely-spaced ultrashort light pulses.Keywords
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