Supercontinuum generation in low dispersion and highly nonlinear hexagonal photonic crystal fibers

Maveeran M; Alagesan T; Babu P.R; Senthilnathan K

doi:10.1117/1.JNP.11.036012

Profiles Research Units Publications

Journal Article

Supercontinuum generation in low dispersion and highly nonlinear hexagonal photonic crystal fibers

Maveeran M, Alagesan T, Babu P.R,

Published in SPIE-Intl Soc Optical Eng

2017

DOI: 10.1117/1.JNP.11.036012

Volume: 11

Issue: 03

Abstract

We design a solid hexagonal photonic crystal fiber (PCF) with air holes of different diameters in the cladding region using the finite element method. We achieve a low group velocity dispersion of -5.483ps2/km and a high nonlinearity of 111.4W-1km-1 at 450 nm with d1/Λ being 0.345, which could ensure single-mode propagation. The low dispersion and high nonlinearity form the crucial requirements to generate the supercontinuum (SC) pulse. The designed PCF exhibits a broad SC spectrum of bandwidth 600 nm at an operating wavelength of 450 nm which might find a great relevance in optical sensing applications. © 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).