Low loss microstructured chalcogenide fibers for large non linear effects at 1995 nm.

Abstract : Microstructured optical fibers (MOFs) are traditionally prepared using the stack and draw technique. In order to avoid the interfaces problems observed in chalcogenide glasses, we have developed a new casting method to prepare the chalcogenide preform. This method allows to reach optical losses around 0.4 dB/m at 1.55 µm and less than 0.05 dB/m in the mid IR. Various As(38)Se(62) chalcogenide microstructured fibers have been prepared in order to combine large non linear index of these glasses with the mode control offered by MOF structures. Small core fibers have been drawn to enhance the non linearities. In one of these, three Stokes order have been generated by Raman scattering in a suspended core MOF pumped at 1995 nm.
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Johann Troles, Quentin Coulombier, G. Canat, M. Duhant, W. Renard, et al.. Low loss microstructured chalcogenide fibers for large non linear effects at 1995 nm.. Optics Express, Optical Society of America, 2010, Focus Issue: Chalcogenide Glass, 18 (25), pp.26647-26654. ⟨10.1364/OE.18.026647⟩. ⟨hal-00854027⟩

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