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Correlated Photon-Pair Generation in a Highly Nonlinear Fiber Using Spontaneous FWM

Almeida, A. ; Pinto, L. M. ; Silva, N. A. ; Muga, N. J. ; Pinto, A. N.

Correlated Photon-Pair Generation in a Highly Nonlinear Fiber Using Spontaneous FWM, Proc Symp. on Enabling Optical Networks - SEON, Aveiro, Portugal, Vol. 1, pp. 1 - 4, July, 2011.

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Abstract
We generate 1550 nm correlated photon pairs
through the spontaneous four-wave mixing (SpFWM) process
in a highly nonlinear fiber (HNLF). The pair source quality
generation is evaluated by the coincidence-to-accidental ratio
(CAR) parameter. It is verified that the spontaneous Raman
scattering (SpRS) photons generated inside the fiber contribute
to the degradation of the source. Nevertheless, a CAR value of
2.77 is found for a pump power at the input of the fiber of
1.1 mW.