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


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. In, ECOC '94: 20th European Conference on Optical Communications, Florence, IT, 26 - 30 Sep 1994.

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Description/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.

Item Type: Conference or Workshop Item (Paper)
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 77140
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:56
URI: http://eprints.soton.ac.uk/id/eprint/77140

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