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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

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.

Original languageEnglish
Title of host publicationProceedings of SPIE Volume 5468
Subtitle of host publicationFluctuations and Noise in Photonics and Quantum Optics II
EditorsPeter Heszler
Place of PublicationBellingham, WA
PublisherSPIE
Pages232-243
Number of pages12
Volume5468
ISBN (Print)9780819453914
DOIs
Publication statusPublished - 2004
EventSPIE 5468, Fluctuations and Noise in Photonics and Quantum Optics II - Maspalomas, Gran Canaria Isaland, Spain
Duration: 25 May 200425 May 2004

Conference

ConferenceSPIE 5468, Fluctuations and Noise in Photonics and Quantum Optics II
CountrySpain
CityMaspalomas, Gran Canaria Isaland
Period25/05/0425/05/04

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