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Proceedings Paper

Photonic crystal fibers based on chalcogenide glasses
Author(s): J. L. Adam; J. Troles; L. Brilland; Q. Coulombier; T. Chartier
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Paper Abstract

Chalcogenide glasses are known for their large transparency in the mid-infrared and their high refractive index (>2). They present also a high non-linear coefficient (n2), 100 to 1000 times larger than for silica, depending on the composition. An original way to obtain single-mode fibers is to design microstructured optical fibers (MOFs). These fibers present unique optical properties thanks to the high degree of freedom in the design of their geometrical structure. A classical method to realize MOFs is the stack-and-draw technique. However, with chalcogenide glasses, that technique induces optical losses at the interfaces in the stack of capillaries. In consequence, we have developed a new casting method to fabricate the chalcogenide preform. This method permits to obtain optical losses around 1 dB/m at 1.55 μm and 0.3 dB/m in the mid-IR region. Various chalcogenide microstructured fibers working in the IR range were prepared in order to take advantage of the non-linear properties of these glasses and of the original MOF properties. For example, fibers with small effective mode area (Aeff < 10 μm2) have been realized to exacerbate the non-linear optical properties. Such fibers will find applications for signal regeneration in telecom, and for the generation of supercontinuum sources. On the contrary, for military applications in the 3-5 and 8-12 μm windows, large effective mode area and single mode fibers have been designed to permit the propagation of high-power gaussian laser beams.

Paper Details

Date Published: 14 October 2010
PDF: 4 pages
Proc. SPIE 7839, 2nd Workshop on Specialty Optical Fibers and Their Applications (WSOF-2), 78390U (14 October 2010); doi: 10.1117/12.876833
Show Author Affiliations
J. L. Adam, Sciences Chimiques de Rennes, CNRS, Univ. de Rennes 1 (France)
J. Troles, Sciences Chimiques de Rennes, CNRS, Univ. de Rennes 1 (France)
L. Brilland, Plate-forme d'Etude et de Recherches sur les Fibres Optiques Spéciales (France)
Q. Coulombier, Sciences Chimiques de Rennes, CNRS, Univ. de Rennes 1 (France)
T. Chartier, Lab. FOTON, CNRS, Ecole Nationale Supérieure Sciences Appliquées et de Technologie (France)


Published in SPIE Proceedings Vol. 7839:
2nd Workshop on Specialty Optical Fibers and Their Applications (WSOF-2)
Juan Hernández-Cordero; Ismael Torres-Gómez; Alexis Méndez, Editor(s)

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