Bandyopadhyay, S and Canning, J and Biswas, P and Stevenson, M and Dasgupta, K (2011) A study of regenerated gratings produced in germanosilicate fibers by high temperature annealing. Optics Express, 19 (2). pp. 1198-1206. ISSN 1094-4087

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In light of recent proposals linking structural change and stresses within regenerated gratings, the details of regeneration of a seed Type-I Bragg grating written in H(2) loaded germanosilicate fiber annealed at high temperatures (similar to 900 degrees C) are systematically explored. In particular, the influence of the strength of the grating, the effect of GeO(2) doping concentration and the annealing conditions on regeneration are studied. We show that the role of dopants such as Ge and F contribute nothing to the regeneration, consistent with previous results. Rather, they may potentially be detrimental. Strongest regenerated gratings with R similar to 35% from a 5mm seed grating could be obtained in fibres with the lowest GeO(2) concentrations such as standard telecommunications-compatible grade fibre.

Item Type: Article
Subjects: Physical Properties
Depositing User: Bidhan Chaudhuri
Date Deposited: 16 Jan 2012 12:01
Last Modified: 05 Mar 2012 10:38

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