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Proceedings Paper

Improving single photon sources via linear optics and photodetection
Author(s): Dominic W Berry; Stefan Scheel; Casey R. Myers; Barry C. Sanders; Peter L Knight; Raymond Laflamme
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Paper Abstract

Triggered single-photon sources produce the vacuum state with non-negligible probability, but produce a much smaller multiphoton component. We describe a method for increasing the probability of a single photon via a chain of beam splitters. This method has the drawbacks that it introduces a significant multiphoton component, and it can not be used to increase the probability for a single photon above 1/2. Part of the reason for these drawbacks is the incoherence in the photon sources. If the photon sources produced pure states rather than incoherent superpositions, it would be possible to obtain a perfect single photon output. The method for incoherent inputs is robust against detector inefficiencies, but sensitive to dark counts and the multiphoton component in the input.

Paper Details

Date Published: 25 May 2004
PDF: 12 pages
Proc. SPIE 5468, Fluctuations and Noise in Photonics and Quantum Optics II, (25 May 2004); doi: 10.1117/12.548578
Show Author Affiliations
Dominic W Berry, Macquarie Univ. (Australia)
Stefan Scheel, Imperial College London (United Kingdom)
Casey R. Myers, Univ. of Waterloo (Canada)
Barry C. Sanders, Univ. of Calgary (Canada)
Macquarie Univ. (Australia)
Peter L Knight, Imperial College London (United Kingdom)
Raymond Laflamme, Univ. of Waterloo (Canada)
Perimeter Institute for Theoretical Physics (Canada)

Published in SPIE Proceedings Vol. 5468:
Fluctuations and Noise in Photonics and Quantum Optics II
Peter Heszler, Editor(s)

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