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Proceedings Paper

Tellurium halide IR fibers for remote spectroscopy
Author(s): Xhang Hua Zhang; Hong Li Ma; Chantal Blanchetiere; Karine Le Foulgoc; Jacques Lucas; Jean Heuze; P. Colardelle; P. Froissard; D. Picque; G. Corrieu
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Paper Abstract

The new family of IR transmitting glasses, the TeX glasses, based on the association of tellurium and halide (Cl, Br, or I) are characterized by a wide optical window extending from 2 to 18 micrometers and a strong stability towards devitrification. Optical fibers drawn from these glasses exhibit low losses in the 7 - 10 micrometers range (less than 1 dB/m for single index fibers, 1 - 2 dB/m for fibers having a core-clad structure). The TeX glass fibers have been used in a remote analysis set-up which is mainly composed of a FTIR spectrometer coupled with a HgCdTe detector. This prototype system permits qualitative and quantitative analysis in a wide wavelength region lying from 3 to 13 micrometers , covering the fundamental absorption of more organic species. The evolution of a lactic and an alcoholic fermentation has been monitored by means of this set-up.

Paper Details

Date Published: 28 July 1994
PDF: 10 pages
Proc. SPIE 2131, Biomedical Fiber Optic Instrumentation, (28 July 1994); doi: 10.1117/12.180702
Show Author Affiliations
Xhang Hua Zhang, Univ. de Rennes I (France)
Hong Li Ma, Univ. de Rennes I (France)
Chantal Blanchetiere, Univ. de Rennes I (France)
Karine Le Foulgoc, Univ. de Rennes I (France)
Jacques Lucas, Univ. de Rennes I (France)
Jean Heuze, SAT (France)
P. Colardelle, SAT (France)
P. Froissard, SAT (France)
D. Picque, INRA (France)
G. Corrieu, INRA (France)


Published in SPIE Proceedings Vol. 2131:
Biomedical Fiber Optic Instrumentation
James A. Harrington; David M. Harris; Abraham Katzir; Fred P. Milanovich, Editor(s)

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