We present simulation results for supercontinuum generation using As2S3 chalcogenide photonic crystal fibers. We found that more than 25% of input power can be shifted into the region between 3 mu m and 5 mu m using a pump wavelength of 2 mu m with a peak power of 1 kW and an FWHM of 500 fs. The broad dispersion profile and high nonlinearity in As2S3 chalcogenide glass are essential for this application. (C) 2010 Optical Society of America
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