Transmission-Loss Spectra of Chalcohalide Se-Te-I Glass Fibers and Its Delivery of CO 2 Laser Power

Chalcohalide Se-Te-I glass fibers have been investigated. The glasses stable against crystallization were found in the region of Se 20-70 Te 10-40 I 20-45 (at.%). Unclad fibers were prepared by the pressurized crucible fiber-drawing method. The lowest transmission loss of 0.9 dB/m at 10.6 µm wavelen...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1991-11, Vol.30 (11R), p.2846
Main Authors: Inagawa, Ikuo, Takashi Yamagishi, Takashi Yamagishi, Toshiharu Yamashita, Toshiharu Yamashita
Format: Article
Language:English
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Summary:Chalcohalide Se-Te-I glass fibers have been investigated. The glasses stable against crystallization were found in the region of Se 20-70 Te 10-40 I 20-45 (at.%). Unclad fibers were prepared by the pressurized crucible fiber-drawing method. The lowest transmission loss of 0.9 dB/m at 10.6 µm wavelength, which is lower than that of previously reported chalcogenide glass fiber, was achieved for the Se 25 Te 30 I 45 glass fiber. The maximum CO 2 laser power delivered through a fiber of 400 µm in diameter and 1 m in length was only 0.8 W. Both the absorbance increments with temperature and the low glass transition temperature of this glass have imposed a limitation on its deliverable power.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.30.2846