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Proceedings Paper

Chalcogenide glasses containing tellurium for IR fiber optics
Author(s): Jasbinder Singh Sanghera; Vinh Q. Nguyen; Pablo C. Pureza; Frederic H. Kung; Fritz Miklos; Lynda E. Busse; Ishwar D. Aggarwal
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Paper Abstract

We have fabricated stable chalcogenide glasses containing up to 35 at. % tellurium and these glasses do not exhibit crystallization upon reheating up to the fiber draw temperature. The physical properties such as Tg, packing density, and Vickers Hardness decreases while the mass density and CTE increase with Te content and these are attributed to the weaker delocalized metallic-bonding character introduced with Te. We have drawn unclad fibers with a minimum attenuation of 0.11 dB/m at 6.6 micrometers which represents the lowest loss reported for a chalcogenide glass containing high levels of Te. Preliminary core/clad fibers have been drawn with a minimum loss of 0.7 dB/m at 6.6 micrometers . Improvements in glass quality and processing will lead to lower losses. We also present data demonstrating the use of unclad fibers for evanescent sensing of numerous organic and inorganic liquids and their mixtures in the 3-12 micrometers region.

Paper Details

Date Published: 28 September 1994
PDF: 9 pages
Proc. SPIE 2290, Fiber Optic Materials and Components, (28 September 1994); doi: 10.1117/12.187404
Show Author Affiliations
Jasbinder Singh Sanghera, Naval Research Lab. (United States)
Vinh Q. Nguyen, Virginia Polytechnic Institute (United States)
Pablo C. Pureza, Naval Research Lab. (United States)
Frederic H. Kung, UMD Research Foundation (United States)
Fritz Miklos, SF Associates (United States)
Lynda E. Busse, Naval Research Lab. (United States)
Ishwar D. Aggarwal, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 2290:
Fiber Optic Materials and Components
Hakan H. Yuce; Dilip K. Paul; Roger A. Greenwell, Editor(s)

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