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Proceedings Paper

Self-steepening and intrapulse Raman scattering for supercontinuum generation in optimized photonic crystal fiber at 1.3 μm
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Paper Abstract

In this work, we design a highly nonlinear noncircular core photonic crystal fiber (HNL-PCF) for the generation of a supercontinuum (SC) at 1.3 μm having minimum anomalous dispersion and using many nonlinear effects by introducing self-phase modulation (SPM), self-steepening and Raman effects. The proposed geometry of the HNL-PCF is composed of six rings of air-holes and silica as a background material for the core. Using the vectorial Finite Element method (FEM) with a perfectly matched layer (PML), the proposed HNL-PCF is numerically modeled for determining its characteristics as Group Velocity Dispersion (GVD) and nonlinear properties. After optimizing the properties of the proposed HNL-PCF (GVD= - 0.95 ps2/km; γ= 55.45 []-1 around 1.3 μm), the SC is generated by solving the nonlinear Schrodinger equation (NLSE), that contains different parameters of the cited nonlinear effects, with split-step Fourier method (SSFM). The introducing of this different effects in our work allows to generate a SC of spectral bandwidth SBW=260 nm at 1,3 μm using only 1.89 mm long of PCF.

Paper Details

Date Published: 27 April 2016
PDF: 7 pages
Proc. SPIE 9886, Micro-Structured and Specialty Optical Fibres IV, 98860C (27 April 2016); doi: 10.1117/12.2228591
Show Author Affiliations
Mohamed Lamine Ferhat, Univ. of Sciences and Technology Houari Boumediene (Algeria)
Lynda Cherbi, Univ. of Sciences and Technology Houari Boumediene (Algeria)

Published in SPIE Proceedings Vol. 9886:
Micro-Structured and Specialty Optical Fibres IV
Kyriacos Kalli; Alexis Mendez, Editor(s)

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