Supercontinuum generation in dispersion-managed tapered-rib waveguide

We have designed a tapered-rib waveguide and numerically studied the generation of supercontinuum using such waveguides. The Air-SF57 glass-SiO2 waveguide is 3 cm long, with a varying etched depth to manage the total dispersion. Numerical simulations are conducted for input pulses at a wavelength of 1.55 mu m with a width of 150 fs and peak power of 5 kW. The proposed waveguide geometry greatly broadens the output spectrum, extending from similar to 1 to similar to 6 mu m, caused by the continuous modification of the phase-matching condition for the generated waves. (C) 2013 Optical Society of America