Improving single photon sources via linear optics and photodetection

Dominic W Berry; Stefan Scheel; Casey R. Myers; Barry C. Sanders; Peter L Knight; Raymond Laflamme

doi:10.1117/12.548578

25 May 2004 Improving single photon sources via linear optics and photodetection

Dominic W Berry, Stefan Scheel, Casey R. Myers, Barry C. Sanders, Peter L Knight, Raymond Laflamme

Proceedings Volume 5468, Fluctuations and Noise in Photonics and Quantum Optics II; (2004) https://doi.org/10.1117/12.548578
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

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.

Citation Download Citation

Dominic W Berry, Stefan Scheel, Casey R. Myers, Barry C. Sanders, Peter L Knight, and Raymond Laflamme "Improving single photon sources via linear optics and photodetection", Proc. SPIE 5468, Fluctuations and Noise in Photonics and Quantum Optics II, (25 May 2004); https://doi.org/10.1117/12.548578

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