Near-zero anomalous dispersion Ge11.5As24Se64.5 glass nanowires for correlated photon pair generation: design and analysis.

Polarization-independent chalcogenide glass nanowires with anomalous dispersion for all-optical processing.

We demonstrate the design and fabrication of square Ge11.5As24Se64.5 (Ge11) nonlinear nanowires fully embedded in a silica cladding for polarization independent (P-I) nonlinear processing. We observed similar performance for FWM using both TE and TM modes confirming that a near P-I operation was obtained. In addition we find that the supercontinuum spectrum that can be generated in the nanowire...

Effect of low-Raman window position on correlated photon-pair generation in a chalcogenide Ge11.5As24Se64.5 nanowire

Generation of correlated photons in nanoscale silicon waveguides.

.We experimentally study the generation of correlated pairs of photons through four-wave mixing (FWM) in embedded silicon waveguides. The waveguides, which are designed to exhibit anomalous group-velocity dispersion at wavelengths near 1555 nm, allow phase matched FWM and thus efficient pair-wise generation of non-degenerate signal and idler photons. Photon counting measurements yield a coincid...

Ultra-low Raman Noise Correlated Photon-Pair Generation in a Dispersion Engineered As2S3 Waveguide

We demonstrate ultra-low Raman noise generation of correlated photon-pairs in a dispersionengineered 10mm As2S3 waveguide at room temperature. We show a coincidence-to-accidental ratio (CAR) of 16.8, a 250 times increase compared with previously published results. ©2012 Optical Society of America OCIS codes: (130.4310) Nonlinear; (190.5650) Raman effect; (270.0270) Quantum Optics The generation...

Suppression of the Chromatic Aberrations Using a Nanowire Metamaterial

Achromatic doublets have been used for decades to minimize the effects of chromatic aberrations inherent to single-glass optical lenses. Here, we propose a fundamentally different solution to correct the chromatic aberrations based on a nanowire metamaterial with low loss anomalous dispersion. We show that by coating a standard glass lens with the metamaterial it may be possible to design a com...