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Stochastic Resonances and Gated Detection in Photon Number Resolving Detectors

Krishnamoorthy, Shree and Ravi, Harish and Kumar, Pradeep K and Prabhakar, Anil (2016) Stochastic Resonances and Gated Detection in Photon Number Resolving Detectors. In: 4th International Conference on Photonics, Optics and Laser Technology (PHOTOOPTICS), 2015, Berlin, GERMANY, pp. 157-172.

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Official URL: http://dx.doi.org/10.1007/978-3-319-30137-2_10


Gated avalanche photo-detectors (GAPD) use gated detection and thresholding electronics to act as Geiger counters to indicate presence of photons. They show stationary Poissonian average noise statistics, though we see evidence of underlying non-stationary stochastic resonance. Both the Poissonian and stochastic resonance processes contribute to the experimentally observed dark count, and are described theoretically. To resolve photon numbers from coherent faint light pulses, we use GAPD with an optical recirculating loop. With the temporal separation of the input photons from the pulse, we not only achieve photon number resolution up to n = 0.024, but also bypass the stochastic resonance effects.

Item Type: Conference Proceedings
Series.: Springer Proceedings in Physics
Additional Information: Copy right for this article belongs to the SPRINGER INT PUBLISHING AG, GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 30 Dec 2016 05:52
Last Modified: 30 Dec 2016 05:52
URI: http://eprints.iisc.ac.in/id/eprint/55499

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