Design and analysis of a highly nonlinear composite photonic crystal fiber for supercontinuum generation: visible to mid-infrared

Jamatia, Purniya and Saini, T.S. and Kumar, Ajeet and Sinha, R.K. (2016) Design and analysis of a highly nonlinear composite photonic crystal fiber for supercontinuum generation: visible to mid-infrared. Applied Optics, 55 (24). pp. 6775-6781. ISSN 1559-128X

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Official URL: https://www.osapublishing.org/ao/abstract.cfm?uri=...

Abstract

A composite photonic crystal fiber structure has been designed with tellurite as the cladding and chalcogenide as a core material. To increase nonlinearity, rods of the chalcogenide glass material have been inserted around the core region. The reported structure offers very high nonlinearity of 1042  W−1 Km−11042  W−1 Km−1 at 2800 nm pump wavelength with low and flattened dispersion of approximately −11  ps·nm−1 Km−1−11  ps·nm−1 Km−1. An effective mode area of 6.46  μm26.46  μm2 of the propagating mode has been achieved as at pump wavelength. Such a highly nonlinear composite photonic crystal fiber structure is a potential candidate for nonlinear applications, such as slow-light and supercontinuum generation. Pumping at 2800 nm results in a supercontinuum spectrum spanning 0.5–4.7 μm using 8 mm long photonic crystal fiber pumped with femtosecond laser pulses with peak power of 3 kW.

Item Type: Article
Additional Information: OCIS codes: (190.0190) Nonlinear optics; (060.5295) Photonic crystal fibers; (320.6629) Supercontinuum generation.
Subjects: CSIO > Photonics Instrumentation
Divisions: Photonics Instrumentation
Depositing User: Ms. Jyotsana
Date Deposited: 28 Aug 2017 18:44
Last Modified: 28 Aug 2017 18:44
URI: http://csioir.csio.res.in/id/eprint/690

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