Photoinduced processes in Sn-doped silica fiber-preforms
Photoinduced processes in Sn-doped silica fiber-preforms
Effects induced by KrF ultraviolet excimer laser on Sn-doped silica fiber performs were analyzed by means of optical and electron paramagnetic resonance (EPR) techniques. Bond breaking in substitutional Sn sites was evidenced by the Sn–E EPR signal due to sp3 unpaired electrons in threefold coordinated Sn sites. Red photoluminescence excited at 633 nm, due to nonbridging-oxygen sites, was also observed after laser exposure. The intensity of this emission did not follow the Sn concentration profile, being observed at the core–cladding interface and in the core center. Birefringence data showed that these effects are accompanied by stress relief in the Sn-doped region. Different structural features of core and cladding were evidenced by micro-Raman measurements and related to the observed photosensitivity.
3701-3703
Chiodini, N.
d516f93d-7d8e-4033-b1be-b33ad58bf4f6
Ghidini, S.
f2b840b8-0476-4345-905b-51810f979fa9
Paleari, A.
8f5681e9-6393-4a6a-b346-3905b72e9dbd
Brambilla, G.
815d9712-62c7-47d1-8860-9451a363a6c8
Pruneri, V.
0e97eb94-b682-409f-a107-ae6b84763f02
2000
Chiodini, N.
d516f93d-7d8e-4033-b1be-b33ad58bf4f6
Ghidini, S.
f2b840b8-0476-4345-905b-51810f979fa9
Paleari, A.
8f5681e9-6393-4a6a-b346-3905b72e9dbd
Brambilla, G.
815d9712-62c7-47d1-8860-9451a363a6c8
Pruneri, V.
0e97eb94-b682-409f-a107-ae6b84763f02
Chiodini, N., Ghidini, S., Paleari, A., Brambilla, G. and Pruneri, V.
(2000)
Photoinduced processes in Sn-doped silica fiber-preforms.
Applied Physics Letters, 77 (23), .
(doi:10.1063/1.1330749).
Abstract
Effects induced by KrF ultraviolet excimer laser on Sn-doped silica fiber performs were analyzed by means of optical and electron paramagnetic resonance (EPR) techniques. Bond breaking in substitutional Sn sites was evidenced by the Sn–E EPR signal due to sp3 unpaired electrons in threefold coordinated Sn sites. Red photoluminescence excited at 633 nm, due to nonbridging-oxygen sites, was also observed after laser exposure. The intensity of this emission did not follow the Sn concentration profile, being observed at the core–cladding interface and in the core center. Birefringence data showed that these effects are accompanied by stress relief in the Sn-doped region. Different structural features of core and cladding were evidenced by micro-Raman measurements and related to the observed photosensitivity.
Text
2060
- Author's Original
More information
Published date: 2000
Identifiers
Local EPrints ID: 13619
URI: http://eprints.soton.ac.uk/id/eprint/13619
ISSN: 0003-6951
PURE UUID: 44ac01b7-180f-4884-82cd-b64f984ca808
Catalogue record
Date deposited: 01 Jan 2005
Last modified: 16 Mar 2024 03:21
Export record
Altmetrics
Contributors
Author:
N. Chiodini
Author:
S. Ghidini
Author:
A. Paleari
Author:
G. Brambilla
Author:
V. Pruneri
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics