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International Journal of Optics
Volume 2013 (2013), Article ID 876474, 6 pages
http://dx.doi.org/10.1155/2013/876474
Research Article

Ultrabroadband, Midinfrared Supercontinuum Generation in Dispersion Engineered As2Se3-Based Chalcogenide Photonic Crystal Fibers

Gres’Com Laboratory, Engineering School of Communication of Tunis (Sup’Com), University of Carthage, Ghazala Technopark, 2083 Ariana, Tunisia

Received 23 February 2013; Accepted 22 October 2013

Academic Editor: Marek Samoc

Copyright © 2013 Rim Cherif and Mourad Zghal. 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.

Abstract

Small core As2Se3-based photonic crystal fibers (PCFs) are accurately characterized for compact, high power, ultrabroadband, and coherent supercontinuum generation within few millimeters fiber length. Bandwidths of ~5.3 μm, 5 μm, and 3.2 μm were calculated for hole-to-hole spacings 3.5 μm, 4.5 μm, and 5.5 μm, respectively. The spectral broadening in the chalcogenide PCF is mainly caused by self-phase modulation and Raman-induced soliton self-frequency shift. The results show that small core As2Se3 PCFs are a promising candidate for mid-IR SCG up to ~8 μm.