TITLE:
Phase-Matching and Parametric Conversion for the Mid-Infrared in As2S3 Waveguides
AUTHORS:
Qi Chen, Xin Wang, Christi Madsen
KEYWORDS:
As2S3; Mid-Infrared; Phase-Matching; Four-Wave Mixing
JOURNAL NAME:
Optics and Photonics Journal,
Vol.2 No.4,
December
28,
2012
ABSTRACT: We illustrate two As2S3 waveguide
designs for four-wave mixing, which can generate 3.03 μm mid-infrared light
from a 1.55 μm near-infrared signal source and a 2.05 μm pump source. Through
simulations, we verify that four-wave mixing phase-matching efficiencies up to
100% can be achieved using dispersion engineering to maintain the
dispersion at 2.05 μm near to zero. The best conversion efficiency is –10
dB. When the waveguide length is 1 cm,
the parametric conversion bandwidth is 1525 nm. We also evaluated the shift of
100% phase-matching efficiency wavelengths based upon fabrication tolerances.