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Non-radiative relaxation in Ta-doped silica fibres

Brocklesby, W.S., Townsend, J.E., Brinck, D.J. and Brown, R.S. (1994) Non-radiative relaxation in Ta-doped silica fibres Optical Materials, 3, (3), pp. 205-208. (doi:10.1016/0925-3467(94)90005-1).

Record type: Article


We describe the properties of tantalum-doped silica fibers which have been doped with thulium and produced by a normal solution doping technique. In silica fibers, non-radiative decay almost quenches luminescence from several of the Tm levels, notably the 3F4 level at 800 nm, and the 1H4 level at 2µm. The properties of these levels are a sensitive test of multiphonon decay rates in the host. We observe fluorescence decay components from these levels in Tm-doped tantalosilicate fibers which are significantly longer than those observed in Tm-doped germanosilicate or aluminosilicate fibers. This is interpreted as the formation of a low-vibrational-energy microenvironment around the rare earth.

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Published date: August 1994


Local EPrints ID: 78178
PURE UUID: e3233a2c-7b00-421a-a170-f919f58b6a52
ORCID for W.S. Brocklesby: ORCID iD

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:26

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Author: W.S. Brocklesby ORCID iD
Author: J.E. Townsend
Author: D.J. Brinck
Author: R.S. Brown

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