Chalcogenide glasses containing tellurium for IR fiber optics

Jasbinder Singh Sanghera; Vinh Q. Nguyen; Pablo C. Pureza; Frederic H. Kung; Fritz Miklos; Lynda E. Busse; Ishwar D. Aggarwal

doi:10.1117/12.187404

28 September 1994 Chalcogenide glasses containing tellurium for IR fiber optics

Jasbinder Singh Sanghera, Vinh Q. Nguyen, Pablo C. Pureza, Frederic H. Kung, Fritz Miklos, Lynda E. Busse, Ishwar D. Aggarwal

Author Affiliations +

Proceedings Volume 2290, Fiber Optic Materials and Components; (1994) https://doi.org/10.1117/12.187404
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

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.

Citation Download Citation

Jasbinder Singh Sanghera, Vinh Q. Nguyen, Pablo C. Pureza, Frederic H. Kung, Fritz Miklos, Lynda E. Busse, and Ishwar D. Aggarwal "Chalcogenide glasses containing tellurium for IR fiber optics", Proc. SPIE 2290, Fiber Optic Materials and Components, (28 September 1994); https://doi.org/10.1117/12.187404

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