An FPGA-based module for multiphoton coincidence counting

David Branning; Mark Beck

doi:10.1117/12.919495

19 May 2012 An FPGA-based module for multiphoton coincidence counting

David Branning, Mark Beck

Proceedings Volume 8375, Advanced Photon Counting Techniques VI; 83750F (2012) https://doi.org/10.1117/12.919495
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

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.

Citation Download Citation

David Branning and Mark Beck "An FPGA-based module for multiphoton coincidence counting", Proc. SPIE 8375, Advanced Photon Counting Techniques VI, 83750F (19 May 2012); https://doi.org/10.1117/12.919495

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