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Proceedings Paper

An FPGA-based module for multiphoton coincidence counting
Author(s): David Branning; Mark Beck
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Paper Abstract

We present a multi-channel coincidence-counting module for use in quantum optics experiments. The circuit takes up to four TTL pulse inputs and counts either 2-, 3-, or 4-fold coincidences, within a user-selected coincidence time window as short as 12 ns. The module can accurately count eight sets of multi-channel coincidences, for input rates of up to 84 MHz. Due to their low cost and small size, multiple modules can easily be combined to count arbitrary M-order coincidences among N inputs.

Paper Details

Date Published: 19 May 2012
PDF: 10 pages
Proc. SPIE 8375, Advanced Photon Counting Techniques VI, 83750F (19 May 2012); doi: 10.1117/12.919495
Show Author Affiliations
David Branning, Trinity College (United States)
Mark Beck, Whitman College (United States)

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

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