Open AccessQuantum-correlated photon pair generation in chalcogenide As_2S_3 waveguides
Author(s) -
Chunle Xiong,
L. G. Helt,
Alexander C. Judge,
Graham D. Marshall,
M. J. Steel,
J. E. Sipe,
Benjamin J. Eggleton
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.016206
Subject(s) - raman scattering , optics , photon , chalcogenide , waveguide , physics , four wave mixing , quantum optics , photonics , optoelectronics , dispersion (optics) , quantum technology , quantum , nonlinear optics , raman spectroscopy , quantum mechanics , laser , open quantum system
We theoretically investigate the generation of quantum-correlated photon pairs through spontaneous four-wave mixing in chalcogenide As(2)S(3) waveguides. For reasonable pump power levels, we show that such photonic-chip-based photon-pair sources can exhibit high brightness (approximately 1 x 10(9) pairs/s) and high correlation (approximately 100) if the waveguide length is chosen properly or the waveguide dispersion is engineered. Such a high correlation is possible in the presence of Raman scattering because the Raman profile exhibits a low gain window at a Stokes shift of 7.4 THz, though it is constrained due to multi-pair generation. As the proposed scheme is based on photonic chip technologies, it has the potential to become an integrated platform for the implementation of on-chip quantum technologies.