International Journal of Physics | Vol. 9, No. 11, November 2018 | pp. 81–88
DOI: 10.46882/2018/IJP/000103
Research Article
Title: Optical Soliton Profiles and Wave Interactions in Chiral Metamaterial Core Waveguides
Names of Authors: L. K. Rousseau¹, G. R. Davies²
Authors’ Affiliations: ¹Laboratoire de Physique des Plasmas, École Polytechnique, Palaiseau, France; ²School of Physics and Astronomy, University of St Andrews, St Andrews, UK
Abstract: Controlling ultra-short light pulses within integrated optical chips is essential for expanding the bandwidth of modern telecommunication networks and quantum links. This study models optical soliton profiles and characterizes multi-wave interactions within chiral metamaterial core waveguides. We solved the coupled non-linear Schrödinger equations governing the left- and right-handed circularly polarized fields using a variational method paired with split-step Fourier numerical simulations. The analytical framework derives the exact phase-matching conditions and power thresholds required to initiate stable solitary wave propagation. The results show that high chirality parameters generate a strong cross-steepening effect, mimicking a non-local Kerr nonlinearity that stabilizes localized two-dimensional structures. The modulation instability growth rate was calculated as a function of chirality, revealing a maximum gain value of g = 3.32 cm^-1 under an input pulse intensity of 2.5 kW/cm². Increasing the chirality parameter from 0.2 to 1.0 reduces the maximum instability gain by 58.0% and prevents pulse fragmentation. These findings provide strategies for controlling self-focusing in high-power laser systems and optimizing all-optical polarization switching networks.
Keywords: Nonlinear optics; optical solitons; chiral metamaterials; split-step Fourier method; modulation instability; wave propagation
Manuscript Timeline: Received: July 03, 2018; Revised: August 20, 2018; Accepted: September 12, 2018; Published: November 13, 2018
Citation: Rousseau, L. K., & Davies, G. R. (2018). Optical Soliton Profiles and Wave Interactions in Chiral Metamaterial Core Waveguides. International Journal of Physics, 9(11), 81–88.
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