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Generation of correlated photon pairs in a chalcogenide As2S3 waveguide

2011; American Institute of Physics; Volume: 98; Issue: 5 Linguagem: Inglês

10.1063/1.3549744

1520-8842

Chunle Xiong, Graham D. Marshall, Alberto Peruzzo, Mirko Lobino, Alex S. Clark, Duk‐Yong Choi, Steve Madden, Chandra M. Natarajan, Michael G. Tanner, Robert H. Hadfield, S. N. Dorenbos, T. Zijlstra, Val Zwiller, Mark G. Thompson, John Rarity, M. J. Steel, Barry Luther‐Davies, Benjamin J. Eggleton, Jeremy L. O’Brien,

Photorefractive and Nonlinear Optics

We demonstrate the first 1550 nm correlated photon-pair source in an integrated glass platform-a chalcogenide As2S3 waveguide. A measured pair coincidence rate of 80 per second 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.