Article
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This version is not peer-reviewed
Observation of Ultrashort Laser Pulse Evolution in Silicon Photonic Crystal Waveguide
Version 1
: Received: 27 June 2021 / Approved: 28 June 2021 / Online: 28 June 2021 (11:44:55 CEST)
A peer-reviewed article of this Preprint also exists.
Wang, X.; Liao, J.; Pan, J.; Yang, H.; Li, X. Observation of Ultrashort Laser Pulse Evolution in a Silicon Photonic Crystal Waveguide. Micromachines 2021, 12, 911. Wang, X.; Liao, J.; Pan, J.; Yang, H.; Li, X. Observation of Ultrashort Laser Pulse Evolution in a Silicon Photonic Crystal Waveguide. Micromachines 2021, 12, 911.
Abstract
Based on the sensitive sum frequency generation cross-correlation frequency-resolved optical gating (SFG-XFROG) measurement setup, besides the pulse broadening, blue shift, red shift and obvious pulse acceleration, we observed the soliton evolution when the low energy soliton pulse with wavelength of 1555nm transmit through the Si photonic crystal waveguide. The measurements were nicely matched with the simulation results, which are achieved with an optimized nonlinear Schrödinger equation (NLSE) modeling. The effects of various parameters of the silicon photonic crystal waveguides and the incident pulses on the pulse transmission were also analyzed, including the nonlinear effects and dispersion such as the self-phase modulation (SPM), self-steepening (SS) and intra-pulse Raman scattering(IRS). The results help us understand further the ultra-fast nonlinear dynamics of soliton in silicon-based waveguides, and even open a novel way for soliton-based functional elements in CMOS-compatible platforms.
Keywords
Photonic crystal waveguide; Pulse acceleration; Self-steepening; Self-phase modulation
Subject
Physical Sciences, Acoustics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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