Fabrication of low losses chalcogenide photonic crystal fibers by molding process

Quentin Coulombier; Laurent Brilland; Patrick Houizot; Thanh Nam Nguyen; Thierry Chartier; Gilles Renversez; Achille Monteville; Julien Fatome; Frédéric Smektala; Thierry Pain; Hervé Orain; Jean-Christophe Sangleboeuf; Johann Trolès

doi:10.1117/12.840868

25 February 2010 Fabrication of low losses chalcogenide photonic crystal fibers by molding process

Quentin Coulombier, Laurent Brilland, Patrick Houizot, Thanh Nam Nguyen, Thierry Chartier, Gilles Renversez, Achille Monteville, Julien Fatome, Frédéric Smektala, Thierry Pain, Hervé Orain, Jean-Christophe Sangleboeuf, Johann Trolès

Author Affiliations +

Proceedings Volume 7598, Optical Components and Materials VII; 75980O (2010) https://doi.org/10.1117/12.840868
Event: SPIE OPTO, 2010, San Francisco, California, United States

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 refractive index (n₂), 100 to 1000 times larger than for silica. An original way to obtain single-mode fibers is to design photonic crystal fibers (PCFs). Until now, chalcogenide PCFs are realized using the stack and draw process. However this technique induces defects, like bubbles, at the capillaries interfaces, causing significant scattering losses. Until now, the best transmission obtained was 3dB/m at 1.55μm. The poor PCF transmission reduces significantly their application potential. So, we present a new efficient method to realize low-loss chalcogenide PCFs. This original method by molding permits to reduce the optical losses down to 1dB/m at 1.55μm and less than 0.5dB/m between 3 and 5μm for an As-Se PCF. Furthermore, this molding method can be used for different compositions. Single mode fibers were realized. Moreover, very small core fibers were realized with this method, obtaining a non linear coefficient of 15 000W^-1km^-1 with an As-Se PCF. We also observed self phase modulation at 1.55μm on a fiber with a 2.3μm² mode area.

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Quentin Coulombier, Laurent Brilland, Patrick Houizot, Thanh Nam Nguyen, Thierry Chartier, Gilles Renversez, Achille Monteville, Julien Fatome, Frédéric Smektala, Thierry Pain, Hervé Orain, Jean-Christophe Sangleboeuf, and Johann Trolès "Fabrication of low losses chalcogenide photonic crystal fibers by molding process", Proc. SPIE 7598, Optical Components and Materials VII, 75980O (25 February 2010); https://doi.org/10.1117/12.840868

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