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ICOP & ICPET 2017, 23 - : 485-488 Back to browse issues page
Impact of Chirp Parameter on the Pulse Evolution in Dispersion- Engineered Silicon Nanowires
Zeinab Delirian * 1, Hassan Pakarzadeh , Alireza Keshavarz
Abstract:   (960 Views)

In this paper, we investigate the impact of chirp parameter on the pulse evolution in dispersion-engineered silicon nanowires by solving nonlinear Schrödinger equation (NLSE) using the split-step Fourier (SSF) method in MATLAB. By assuming femtosecond hyperbolic secant input pulse and including nonlinear effects, second- and third-order dispersion coefficients as a function of length the effect of chirp parameter on pulse propagation along nanowire, is investigated. The results show that the value and sign of the chirp has a significant impact on the pulse evolution and specially the pulse broadening along the nanowire so that the broadening can be reduced by adding a positive chirp to the input pulse. Hence, by choosing proper value of pulse parameters, pulse propagation can be controlled such that the minimum broadening during propagation happens

Keywords: Chirp, Nonlinear Schrödinger equation, Dispersion engineering, Silicon Nanowire.
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Type of Study: Research | Subject: Special
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Delirian Z, Pakarzadeh H, Keshavarz A. Impact of Chirp Parameter on the Pulse Evolution in Dispersion- Engineered Silicon Nanowires. ICOP & ICPET. 2017; 23 :485-488
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Volume 23 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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