Abstract
In this paper, we investigate the propagation of short pulses in dispersion-engineered silicon nanowires via solving nonlinear Schrödinger equation (NLSE) using the split-step Fourier (SSF) method. By assuming secant-hyperbolic input pulse and including the nonlinear parameter, second- and third-order dispersion coefficients as a function of nanowire length, the impact of chirp parameter on the pulse evolution along the nanowire is simulated. The results show that the value and sign of the chirp parameter have significant impacts on the pulse evolution and specially the pulse broadening along the nanowire. Hence, the broadening factor can be reduced by adding a positive chirp to the input pulse. By choosing proper values of pulse parameters, pulse propagation can be controlled such that the minimum broadening during the propagation happens.
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Pakarzadeh, H., Delirian, Z. Propagation of Short Pulses in Dispersion-Engineered Silicon Nanowires: Impact of Chirp Parameter. Silicon 14, 1221–1225 (2022). https://doi.org/10.1007/s12633-020-00850-2
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DOI: https://doi.org/10.1007/s12633-020-00850-2