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Strong UV absorption in germanosilicate fibre preforms induced by exposure to 248nm radiation

Record type: Conference or Workshop Item (Paper)

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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Citation

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 At ECOC '94: 20th European Conference on Optical Communications, Italy. 26 - 30 Sep 1994.

More information

Published date: 1994
Venue - Dates: ECOC '94: 20th European Conference on Optical Communications, 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

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:34

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Contributors

Author: L. Dong
Author: J.L. Archambault
Author: P.St.J. Russell
Author: D.N. Payne

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