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Abstract
An all-fibre heralded single photon source operating at 1570 nm has been demonstrated. The device generates correlated photon pairs, widely spaced in frequency, through four-wave mixing in a photonic crystal fibre. Separation of the pair photons and narrowband filtering is all achieved in fibre. The output heralded single photon rate was 9.2 x 10(4) per second, with a counts-to-accidentals ratio of 10.4 and a heralding fidelity of 52%. Furthermore, narrowband filtering ensured that the output single photon state was near time-bandwidth limited with a coherence length of 4 ps. Such a source is well suited to quantum information processing applications.
Original language | English |
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Pages (from-to) | 6156-6165 |
Number of pages | 10 |
Journal | Optics Express |
Volume | 17 |
Issue number | 8 |
Early online date | 31 Mar 2009 |
DOIs | |
Publication status | Published - 13 Apr 2009 |
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Dive into the research topics of 'Narrowband high-fidelity all-fibre source of heralded single photons at 1570 nm'. Together they form a unique fingerprint.Projects
- 1 Finished
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MICROSTRUCTURED FIBRE FOR QUANTUM INFORMATION
Wadsworth, W. (PI) & Birks, T. (CoI)
Engineering and Physical Sciences Research Council
1/10/07 → 30/09/10
Project: Research council