Sulphur-doped silica fibres

An optical fibre with low optical losses is manufactured from a sulphur-doped quartz glass. Optical absorption spectra are measured for various parts of the fibre core. Most of the bands of these spectra are assigned to oxygen-deficient centres and colour centres containing sulphur atoms. The photos...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2003-01, Vol.33 (1), p.90-94
Main Authors: Gerasimova, V I, Rybaltovskii, A O, Chernov, P V, Mashinsky, V M, Sazhin, O D, Medvedkov, O I, Rybaltovsky, A A, Khrapko, R R
Format: Article
Language:English
Subjects:
ABSORPTION SPECTRA
COLOR CENTERS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DOPED MATERIALS
ELECTROMAGNETIC RADIATION
ELEMENTS
FIBERS
GLASS
GRATINGS
LASER RADIATION
MATERIALS
MATERIALS SCIENCE
MINERALS
NONMETALS
OPTICAL FIBERS
OPTICAL PROPERTIES
OXIDE MINERALS
OXYGEN
PHOTOSENSITIVITY
PHYSICAL PROPERTIES
POINT DEFECTS
QUARTZ
RADIATIONS
REFRACTIVE INDEX
SENSITIVITY
SILICA
SPECTRA
SULFUR
VACANCIES
WAVELENGTHS
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Description
Summary:An optical fibre with low optical losses is manufactured from a sulphur-doped quartz glass. Optical absorption spectra are measured for various parts of the fibre core. Most of the bands of these spectra are assigned to oxygen-deficient centres and colour centres containing sulphur atoms. The photosensitivity of glasses exposed to laser radiation at wavelengths of 193 and 244 nm is investigated to estimate the possibility of their application for producing photorefracting devices. A Bragg grating of the refractive index with {Delta}n = 7.8 x 10{sup -4} is written in a sulphur-doped silica fibre. (fibre optics)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2003v033n01ABEH002369