Soliton self-frequency shift performance in As(2)S(3) waveguides.
The soliton self-frequency shift in As(2)S(3) is investigated theoretically. Differences in the shapes of the Raman spectra in silica and As(2)S(3) are predicted to lead to variations of less than 25% in the frequency shift rate of a fundamental soliton. Detailed simulation of the propagation of a low peak power pulse in a chalcogenide ridge waveguide shows the concepts of Raman soliton behaviour in silica to be transferrable to As(2)S(3). Thus we predict the effectiveness of the soliton self-frequency shift in contributing to wide bandwidth generation in low-power supercontinua at mid-infrared wavelengths in this highly nonlinear chalcogenide, as well as other nonlinear processing applications such as digital quantization for optical analogue to digital conversion.
Judge
Alexander C
AC
Centre for Ultrahigh-Bandwidth Devices for Optical Systems, Institute of Photonics and Optical Sciences, School of Physics, University of Sydney, NSW 2006, Australia. a.judge@physics.usyd.edu.au
Dekker
Stephen A
SA
Pant
Ravi
R
de Sterke
C Martijn
CM
Eggleton
Benjamin J
BJ