NDLI: Very large temperature-induced absorptive loss in high Te-containing chalcogenide fibers

Content Provider	IEEE Xplore Digital Library
Author	Nguyen, V.Q. Sanghera, J.S. Kung, F.H. Pureza, P.C. Aggarwal, I.D.
Copyright Year	1983
Abstract	The change in the absorption loss relative to room temperature of the infrared (IR)-transmitting Ge/sub 15/As/sub 35/Se/sub (50-x)/Te/sub x/ glass fibers in the temperature range of -110/spl deg/C/spl les/T/spl les/110/spl deg/C was investigated. The attenuation increased significantly at T/spl ges/40/spl deg/C. This is mainly attributed to thermally activated free carriers associated with the semimetallic character of the Te atom. For /spl lambda//spl les/4.2 /spl mu/m, the loss due to electronic and free-carrier absorption was strongly affected by temperature. In the wavelength region of 5-11 /spl mu/m, the loss was mainly due to free-carrier absorption. Beyond /spl lambda//spl ges/11 /spl mu/m, multiphonon absorption dominated the loss spectrum at T/spl les/60/spl deg/C while free-carrier absorption contributed mainly to the total loss at T/spl ges/80/spl deg/C.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1395
Ending Page	1401
Page Count	7
File Size	167196
File Format	PDF
ISSN	07338724
Volume Number	18
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tellurium Optical fibers Glass Electromagnetic wave absorption Optical fiber losses Optical fiber sensors Temperature distribution Optical network units Optical sensors Optical surface waves
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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