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Materials 2014, 7(8), 6045-6063; doi:10.3390/ma7086045

Modified Powder-in-Tube Technique Based on the Consolidation Processing of Powder Materials for Fabricating Specialty Optical Fibers

1
Xlim Research Institute, UMR 7252 CNRS/University of Limoges, 123 avenue Albert THOMAS, 87060 LIMOGES, France
2
SPCTS, UMR 7315 CNRS/University of Limoges, European Ceramic Center, 12 rue Atlantis, 87068 LIMOGES, France
3
Leibnitz Institute of Photonic Technology IPHT, Albert-Einstein-Str. 9, 07745 Jena, Germany
*
Author to whom correspondence should be addressed.
Received: 1 July 2014 / Revised: 22 July 2014 / Accepted: 12 August 2014 / Published: 22 August 2014
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Abstract

The objective of this paper is to demonstrate the interest of a consolidation process associated with the powder-in-tube technique in order to fabricate a long length of specialty optical fibers. This so-called Modified Powder-in-Tube (MPIT) process is very flexible and paves the way to multimaterial optical fiber fabrications with different core and cladding glassy materials. Another feature of this technique lies in the sintering of the preform under reducing or oxidizing atmosphere. The fabrication of such optical fibers implies different constraints that we have to deal with, namely chemical species diffusion or mechanical stress due to the mismatches between thermal expansion coefficients and working temperatures of the fiber materials. This paper focuses on preliminary results obtained with a lanthano-aluminosilicate glass used as the core material for the fabrication of all-glass fibers or specialty Photonic Crystal Fibers (PCFs). To complete the panel of original microstructures now available by the MPIT technique, we also present several optical fibers in which metallic particles or microwires are included into a silica-based matrix. View Full-Text
Keywords: powder in tube; process; glass; metal; oxidation state; multimaterial optical fiber; species diffusion; specialty optical fiber powder in tube; process; glass; metal; oxidation state; multimaterial optical fiber; species diffusion; specialty optical fiber
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Auguste, J.-L.; Humbert, G.; Leparmentier, S.; Kudinova, M.; Martin, P.-O.; Delaizir, G.; Schuster, K.; Litzkendorf, D. Modified Powder-in-Tube Technique Based on the Consolidation Processing of Powder Materials for Fabricating Specialty Optical Fibers. Materials 2014, 7, 6045-6063.

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