Abstract

We have designed a tapered-rib waveguide and numerically studied the generation of supercontinuum using such waveguides. The Air-SF57 $\text{glass}–{\mathrm{Si}\mathrm{O}}_2$ 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 μm with a width of 150 fs and peak power of 5 kW. The proposed waveguide geometry greatly broadens the output spectrum, extending from $\sim 1$ to $\sim 6\mathrm{\mu m}$, caused by the continuous modification of the phase-matching condition for the generated waves.

© 2013 Optical Society of America

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