Investigation of dispersion characteristics of highly nonlinear microstructured fibre series for customized supercontinuum generation

Zbyszek Holdynski; Michal Szymanski; Michal Murawski; Pawel Mergo; Idzi Merta; Malgorzata Gawronska; Pawel Marc; Leszek R. Jaroszewicz; Tomasz Nasilowski

doi:10.1117/12.922765

25 April 2012 Investigation of dispersion characteristics of highly nonlinear microstructured fibre series for customized supercontinuum generation

Zbyszek Holdynski, Michal Szymanski, Michal Murawski, Pawel Mergo, Idzi Merta, Malgorzata Gawronska, Pawel Marc, Leszek R. Jaroszewicz, Tomasz Nasilowski

Author Affiliations +

Proceedings Volume 8426, Microstructured and Specialty Optical Fibres; 84260O (2012) https://doi.org/10.1117/12.922765
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

Dispersion characteristics are the fundamental properties of microstructured fibres (MSFs) with respect to the nonlinear applications. The changes of fibre dispersion may strongly influence the whole chain of diverse nonlinear effects resulting in supercontinuum generation (SG). Transferring the experience from the topics related to tailoring different properties of MSFs to investigate the potential design freedom of dispersion opens novel possibilities of building the customized, all-fibre broadband and bright light sources. The silica nonlinear microstructured fibres, as presented in this paper, become compatible with standard fibre components and technologies (e.g. splicing, connectorization etc). Supercontinuum generated in a small-core MSF is a very interesting nonlinear phenomenon from application-oriented point of view. A development of tailored dispersion of highly non-linear silica MSF offers us the possibility of constructing a customized broadband light source. Therefore, in the paper we present a theoretical and experimental investigation of dispersion characteristics of several different MSFs. Our studies are leading to the development of adapted dispersion properties, allowing construction of customized supercontinuum sources. All fibre, white light interferometry set-up, resulting in extremely high precision measurement of chromatic dispersion, is demonstrated, together with fully computer controlled fringe pattern analysis. Constructed set-up permitted comparison of chromatic dispersion measurements of microstructured fibres with modified fibre cross-section dimensions during the production process. High correlation between modelling and measured data gives possibility to control dispersion level in manufacturing process. Additionally, precisely designed and measured chromatic dispersion, especially around the zero dispersion wavelength, enables superior estimation of MSF nonlinear effects.

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Zbyszek Holdynski, Michal Szymanski, Michal Murawski, Pawel Mergo, Idzi Merta, Malgorzata Gawronska, Pawel Marc, Leszek R. Jaroszewicz, and Tomasz Nasilowski "Investigation of dispersion characteristics of highly nonlinear microstructured fibre series for customized supercontinuum generation", Proc. SPIE 8426, Microstructured and Specialty Optical Fibres, 84260O (25 April 2012); https://doi.org/10.1117/12.922765

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