Radioluminescence response of germanosilicate optical fibres
Radioluminescence response of germanosilicate optical fibres
X-ray irradiation of germanosilicate optical fibres simultaneously produces signals from both the core and substrate and so the radioluminescence spectra record the defect structure of both regions. The data provide evidence for the presence of dopants and trace impurities, as well as intrinsic defects formed by thermal and radiation processing. Examples of the changes in spectra or luminescence sensitivity with radiation dose, the influence of fibre pulling conditions and post irradiation heating are noted. The temperature dependence of the radioluminescence is reported. Whilst most of the intrinsic defects produce broad emission bands, rare earth dopants show line features. However, line features have also been noted for Al doped fibres. Such studies of fibre luminescence offer a sensitive monitor of changes in the structure of the glass network.
optical fibers, x-ray irradiation, radioluminescence, germanosilicate, defects, dopants
47-59
Khanlary, M.R.
a28ba404-861a-40ea-b0a3-5c6fdaecd3ff
Townsend, P.D.
d09c7d3f-d83e-43cd-8ac4-546701bb860f
Townsend, J.E.
a5a6f6ef-adb0-4072-8dcb-b6f5b5a47e64
July 1993
Khanlary, M.R.
a28ba404-861a-40ea-b0a3-5c6fdaecd3ff
Townsend, P.D.
d09c7d3f-d83e-43cd-8ac4-546701bb860f
Townsend, J.E.
a5a6f6ef-adb0-4072-8dcb-b6f5b5a47e64
Khanlary, M.R., Townsend, P.D. and Townsend, J.E.
(1993)
Radioluminescence response of germanosilicate optical fibres.
Radiation Effects and Defects in Solids, 127 (1), .
(doi:10.1080/10420159308219897).
Abstract
X-ray irradiation of germanosilicate optical fibres simultaneously produces signals from both the core and substrate and so the radioluminescence spectra record the defect structure of both regions. The data provide evidence for the presence of dopants and trace impurities, as well as intrinsic defects formed by thermal and radiation processing. Examples of the changes in spectra or luminescence sensitivity with radiation dose, the influence of fibre pulling conditions and post irradiation heating are noted. The temperature dependence of the radioluminescence is reported. Whilst most of the intrinsic defects produce broad emission bands, rare earth dopants show line features. However, line features have also been noted for Al doped fibres. Such studies of fibre luminescence offer a sensitive monitor of changes in the structure of the glass network.
More information
Published date: July 1993
Keywords:
optical fibers, x-ray irradiation, radioluminescence, germanosilicate, defects, dopants
Identifiers
Local EPrints ID: 78316
URI: http://eprints.soton.ac.uk/id/eprint/78316
ISSN: 1042-0150
PURE UUID: 99d53f46-02c3-4d8f-8c47-49e79b77636a
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:11
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Contributors
Author:
M.R. Khanlary
Author:
P.D. Townsend
Author:
J.E. Townsend
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