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Proceedings Paper

Crystalline silver halide fibers with optical losses lower than 50 dB/km in broad IR region
Author(s): Leonid N. Butvina; Eugeni M. Dianov; N. V. Lichkova; V. N. Zavgorodnev; Lukas Kuepper
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Paper Abstract

For the first time crystalline silver halides optical fibers with optical losses lower than 50 dB/km in broad region from 9 to 14 micron were fabricated by an extrusion process. The optical loss mechanism essential to lowest absorption in silver halides materials and fibers as intraband absorption by free holes in valence band are proposed. The crystalline fibers with Rayleigh type (lambda) -4 optical scattering were obtained. The IR region near 13 micron in AgBrI fibers with optical losses less than 10 dB/km was discovered. Non aged, stable IR polycrystalline silver halides optical fiber cables with losses, lower than 1 dB/m in region from 3 to 20 microns are presented. Various applications of developed ATR and reflection remote FTIR sensors, based on low losses silver halides fibers are discussed.

Paper Details

Date Published: 10 December 1999
PDF: 8 pages
Proc. SPIE 3849, Infrared Optical Fibers and Their Applications, (10 December 1999); doi: 10.1117/12.372802
Show Author Affiliations
Leonid N. Butvina, General Physics Institute (Russia)
Eugeni M. Dianov, General Physics Institute (Russia)
N. V. Lichkova, General Physics Institute (Russia)
V. N. Zavgorodnev, General Physics Institute (Russia)
Lukas Kuepper, Infrared Fiber Sensors (Germany)

Published in SPIE Proceedings Vol. 3849:
Infrared Optical Fibers and Their Applications
Mohammed Saad; James A. Harrington, Editor(s)

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