Generation of correlated photon pairs in a chalcogenide As2S3 waveguide
C. Xiong
G.D. Marshall
A. Peruzzo
M. Lobino
A.S. Clark
D.Y. Choi
S.J. Madden
C.M. Natarajan
M.G. Tanner
R.H. Hadfield
S.N. Dorenbos
T. Zijlstra
V. Zwiller
M.G. Thompson
J.G. Rarity
M.J. Steel
B. Luther-Davies
B.J. Eggleton
J.L. O'Brien
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Abstract
We demonstrate a 1550 nm correlated photon-pair source in an integrated glass platform—a chalcogenide As2S3 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.