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Proceedings Paper

Efficient photon number detection with silicon avalanche photodiodes
Author(s): Oliver Thomas; Zhiliang L. Yuan; James F. Dynes; Andrew W. Sharpe; Andrew J. Shields
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Paper Abstract

We demonstrate an efficient photon number detector for visible wavelengths using a fast-gated silicon avalanche photodiode. Using sub-nanosecond voltage gates with a self-differencing circuit, the device is able to resolve up to four photons in an incident optical pulse, with a detection probability of up to 91.1 % at 1 GHz. With this performance and close to room temperature operation, fast-gated silicon avalanche photodiodes are ideal for optical quantum information processing that requires single-shot photon number detection.

Paper Details

Date Published: 12 February 2011
PDF: 6 pages
Proc. SPIE 7948, Advances in Photonics of Quantum Computing, Memory, and Communication IV, 79480M (12 February 2011); doi: 10.1117/12.875116
Show Author Affiliations
Oliver Thomas, Toshiba Research Europe Ltd. (United Kingdom)
Zhiliang L. Yuan, Toshiba Research Europe Ltd. (United Kingdom)
James F. Dynes, Toshiba Research Europe Ltd. (United Kingdom)
Andrew W. Sharpe, Toshiba Research Europe Ltd. (United Kingdom)
Andrew J. Shields, Toshiba Research Europe Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 7948:
Advances in Photonics of Quantum Computing, Memory, and Communication IV
Zameer Ul Hasan; Philip R. Hemmer; Hwang Lee; Charles M. Santori, Editor(s)

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