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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 20 — Oct. 3, 2005
  • pp: 7832–7839

1.5-μm band quantum-correlated photon pair generation in dispersion-shifted fiber: suppression of noise photons by cooling fiber

Hiroki Takesue and Kyo Inoue  »View Author Affiliations


Optics Express, Vol. 13, Issue 20, pp. 7832-7839 (2005)
http://dx.doi.org/10.1364/OPEX.13.007832


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Abstract

Spontaneous four-wave mixing in a dispersion-shifted fiber (DSF) is a promising approach for generating quantum-correlated photon pairs in the 1.5 μm band. However, it has been reported that noise photons generated by the spontaneous Raman scattering process degrade the quantum correlation of the generated photons. This paper describes the characteristics of quantum-correlated photon pair generation in a DSF cooled by liquid nitrogen. With this technique, the number of noise photons was sufficiently suppressed and the ratio of true coincidence to accidental coincidence was increased to ~30.

© 2005 Optical Society of America

OCIS Codes
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(270.0270) Quantum optics : Quantum optics

ToC Category:
Research Papers

History
Original Manuscript: August 31, 2005
Revised Manuscript: September 15, 2005
Published: October 3, 2005

Citation
Hiroki Takesue and Kyo Inoue, "1.5-µm band quantum-correlated photon pair generation in dispersion-shifted fiber: suppression of noise photons by cooling fiber," Opt. Express 13, 7832-7839 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-20-7832


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