GLASSES AND OPTICAL IR FIBERS OF As//2Se//3// minus //xTe//x.

N. Croitoru*, N. Shamir, D. Mendlovic, J. Dror, Y. Lereah

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Chalcogenide glasses of As//2Se//3// minus //xTe//x(0 less than multiplied by less than 3) were made. From these materials optical fibers were pulled, and the attenuation of CO//2 laser light (wavelength lambda equals 10. 6 mu m) transmitted through these fibers was measured as a function of the Te content (x). The fiber's surface and cross-section were examined. The influence of the physical and mechanical properties on the concentration of defects was studied by measuring the optical absorption ( alpha ) and the microhardness (V//H) of the raw materials. Slabs of As//2Se//3// minus //xTe//x were made, and in these samples the alpha , V//H, and glass transition temperature (T//g) as a function of x were measured. In the infrared region of the spectra at lambda equals 10. 6 mu m, the alpha in both the slabs and pulled fibers increased, and the V//H and T//g decreased with the increase of x. This can be explained by the increase of the concentration of the defects (small crystallites) which appeared during the fiber pulling.

Original languageEnglish
Title of host publicationMaterials Research Society Symposia Proceedings
EditorsSusanne R. Nagel, James W. Fleming, George H. Sigel, David A. Thompson
PublisherMaterials Research Soc
Number of pages5
ISBN (Print)0931837537
StatePublished - 1987

Publication series

NameMaterials Research Society Symposia Proceedings
ISSN (Print)0272-9172


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