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Opt Lett. 2012 Jul 1;37(13):2751-3. doi: 10.1364/OL.37.002751.

Multimaterial preform coextrusion for robust chalcogenide optical fibers and tapers.

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CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, Florida 32816, USA.


The development of robust infrared fibers is crucial for harnessing the capabilities of new mid-infrared lasers. We present a novel approach to the fabrication of chalcogenide glass fiber preforms: one-step multimaterial extrusion. The preform consists of a glass core and cladding surrounded by a built-in, thermally compatible, polymer jacket for mechanical support. Using this approach we extrude several preform structures and draw them into robust composite fibers. Furthermore, the polymer cladding allows us to produce robust tapers with submicrometer core diameter.

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