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Opt Lett. 2010 Jun 1;35(11):1780-2. doi: 10.1364/OL.35.001780.

Parabolic pulse generation in tapered silicon fibers.

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  • 1Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK.


Numerical simulations are used to investigate parabolic pulse generation in tapered silicon optical fibers. The simulations are based on a realistic silicon fiber taper with micrometer-sized core dimensions, designed to have a decreasing normal dispersion profile, and include the effects of linear and nonlinear absorption. Evolution to the parabolic regime is quantified by a misfit parameter, and the optimum values for the input pulse and taper length are established. The results identify a distortion-free nonlinear propagation window for the transmission of optical pulses in normal dispersion silicon waveguides.

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