Holey optical fibers based on chalcogenide glasses

International audienc

Single mode holey fiber in GeGaSbS chalcogenide glass

oral session TuD "Continuum Generation and Photonic Crystal Fibers" [TuD3]International audienceWe present recent results on the fabrication of a single mode Holey Fiber in GeGaSbS chalcogenide glass using the “Stack&Draw” technique. We measure a Mode Field Diameter of 8,3 µm and we estimate at 200 W-1km-1 the γ value

Light guidance in new chalcogenide holey fibres from GeGaSbS glass

International audienceHoley fibres have a broad range of optical properties thanks to their microstructuration and offer a wide range of applications. The combination of intrinsic properties of compound glass, such as chalcogenide glass, and a microstructured fibre geometry allows to consider exacerbated optical properties such as dispersion and nonlinearity for these fibres. In this study, high-index sulphide glass holey fibres (n = 2.251 at 1.55 μm) have been accomplished using the capillary-stacking technique. Sulphide glasses from the GeGaSbS system are used. The drawing step is crucial for microstructuration and for determination of optical properties. Sulphide holey fibres, which were optically characterised with near-field spectroscopy at 1.55 μm, show a single-mode guidance with an effective mode area of 108 μm2

Recent advances in the development of holey optical fibers based on sulfide glasse

conference 6128 " Photonic Crystal Materials and Devices IV ", topic " Nanotechnologies in Photonics ", session 6 " Photonic Crystal Fibers ", [6128-19]International audienceMicrostructured optical fibers as new optical objects have been developed in the recent past years, firstly from silica glass and then from other oxide glasses such as tellurite or different heavy cations oxide glasses. However very few results have been reported concerning non-oxide glasses and more particularly chalcogenide glasses. In a photonic crystal fiber the arrangement of air holes along the transverse section of the fiber around a solid glassy core leads to unique optical properties, such as for example broadband single-mode guidance, adjustable dispersion, nonlinear properties. Since the effective modal area is adjustable thanks to geometrical parameters, chalcogenide microstructured fibers with small mode area are of interest for nonlinear components because of the intrinsic non linearity of chalcogenide glasses, several order of magnitude above these of the reference silica glass (100 to 1000 times the non linearity of silica glass). On the other hand, chalcogenide holey fibers with large mode area are of interest for infrared power transmission, in a wavelength range out of reach of silica fibers, and more particularly in the 3-5 μm atmospheric window. The aim of this paper is to present more specifically the recent results that have been achieved in the elaboration, light guidance and characterization of photonic crystal fibers from the sulfide Ge20Ga5Sb10S65 glass, which presents a large transparency window from 600 nm to 11 μm

Fabrication of complex structures of Holey Fibers in Chalcogenide glass.

International audienceWe report recent progress on fabrication of solid core microstructured fibers in chalcogenide glass. Several complex and regular holey fibers from Ga5Ge20Sb10S65 chalcogenide glass have been realized. We demonstrate that the "Stack & Draw" procedure is a powerful tool against crystallisation when used with a very stable chalcogenide glass. For a 3 ring multimode Holey Fiber, we measure the mode field diameter of the fundamental mode and compare it successfully with calculations using the multipole method. We also investigate, via numerical simulations, the behaviour of fundamental mode guiding losses of microstructured fibers as a function of the matrix refractive index, and quantify the advantage obtained by using a high refractive index glass such as chalcogenide instead of low index glass

Mid-infrared strong spectral broadening in microstructured tapered chalcogenide AsSe fiber

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Low losses highly non linear As2S3 suspended core microstructured optical fibers

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Supercontinuum generation in suspended core microstructured tellurite optical fibers.

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Infrared non-linear optical properties of low losses As2S3 photonic crystal fibers with different profiles

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