We demonstrate a 1550 nm correlated photon-pair source in an integrated glass platform-a chalcogenide As2 S3 waveguide. A measured pair coincidence rate of 80 s-1 was achieved using 57 mW of continuous-wave pump. The coincidence to accidental ratio was shown to be limited by spontaneous Raman scattering effects that are expected to be mitigated by using a pulsed pump source.
Bibliographical noteCopyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters,98,051101 and may be found at http://dx.doi.org/10.1063/1.3549744.
Erratum can be found in Applied Physics Letters, Volume 98(11), 119902, http://dx.doi.org/10.1063/1.3567413