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Opt Express. 2009 Jun 8;17(12):10290-7.

High-brightness, low-noise, all-fiber photon pair source.

Author information

  • 1NIST, Optoelectronics Division, Boulder, CO 80305, USA.

Abstract

We demonstrate an all-fiber photon pair source for the critical telecom C-band. We achieve high pair generation rates in excess of 10 MHz while maintaining coincidence-to-accidental ratios (CARs) greater than 100. This is one of the brightest and lowest-noise photon pair sources ever demonstrated. We achieve the high pair rate through CW-pumped spontaneous four-wave mixing in dispersion-shifted fiber. We achieve the high CAR by cooling the fiber to 4 K to suppress the Raman generation and detecting the photons with low jitter and low dark count superconducting single-photon detectors.

PMID:
19506682
[PubMed - indexed for MEDLINE]
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