Strong UV absorption in germanosilicate fibre preforms induced by exposure to 248nm radiation
Strong UV absorption in germanosilicate fibre preforms induced by exposure to 248nm radiation
A new technique has enabled us to resolve the strong UV absorption spectrum in the UV-exposed germanosilicate preforms. Our results show that the strong UV-induced band at 195 nm is responsible for as much as 1 x 10 of index change at 1.5µm after only moderate UV exposure in a 0.18 NA preform. The thermal annealing properties of this band also resemble those of fibre gratings, supporting a colour-centre model of photosensitivity.
Dong, L.
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Archambault, J.L.
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Russell, P.St.J.
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Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
1994
Dong, L.
4a30a247-d676-42ef-aaf4-061579d6d64e
Archambault, J.L.
22245ae0-fbe9-4d25-a850-f3b38c78848a
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Dong, L., Archambault, J.L., Russell, P.St.J. and Payne, D.N.
(1994)
Strong UV absorption in germanosilicate fibre preforms induced by exposure to 248nm radiation.
ECOC '94: 20th European Conference on Optical Communications, Florence, Italy.
26 - 30 Sep 1994.
Record type:
Conference or Workshop Item
(Paper)
Abstract
A new technique has enabled us to resolve the strong UV absorption spectrum in the UV-exposed germanosilicate preforms. Our results show that the strong UV-induced band at 195 nm is responsible for as much as 1 x 10 of index change at 1.5µm after only moderate UV exposure in a 0.18 NA preform. The thermal annealing properties of this band also resemble those of fibre gratings, supporting a colour-centre model of photosensitivity.
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Published date: 1994
Venue - Dates:
ECOC '94: 20th European Conference on Optical Communications, Florence, Italy, 1994-09-26 - 1994-09-30
Identifiers
Local EPrints ID: 77140
URI: http://eprints.soton.ac.uk/id/eprint/77140
PURE UUID: 5d63ced9-5084-4402-a81f-4740529f21ae
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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:44
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Contributors
Author:
L. Dong
Author:
J.L. Archambault
Author:
P.St.J. Russell
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