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Nonlinear transmission and colour-centre dynamics in germanosilicate fibres at 420-540 nm

Nonlinear transmission and colour-centre dynamics in germanosilicate fibres at 420-540 nm
Nonlinear transmission and colour-centre dynamics in germanosilicate fibres at 420-540 nm
We report evidence in support of the view that induced loss and non-linear transmission in pure germanosilicate fibers at blue/green wavelengths are governed by the formation (via two-photon absorption), spontaneous and stimulated transformation and bleaching (via single-photon events) of Ge(1), Ge(2) and Ge(3) colour-centres. Using a tunable pulsed dye laser, the excitation spectrum of the induced absorption, its spectral attenuation and the effects of germania concentration and thermal annealing are investigated.
0146-9592
1023-1025
Poyntz-Wright, L.J.
1acbc672-a9cb-4183-a841-82c52831bfb3
Fermann, M.E.
7b069725-c906-4b27-9b6d-1034b99b0cf7
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Poyntz-Wright, L.J.
1acbc672-a9cb-4183-a841-82c52831bfb3
Fermann, M.E.
7b069725-c906-4b27-9b6d-1034b99b0cf7
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a

Poyntz-Wright, L.J., Fermann, M.E. and Russell, P.St.J. (1988) Nonlinear transmission and colour-centre dynamics in germanosilicate fibres at 420-540 nm. Optics Letters, 13, 1023-1025. (doi:10.1364/OL.13.001023).

Record type: Article

Abstract

We report evidence in support of the view that induced loss and non-linear transmission in pure germanosilicate fibers at blue/green wavelengths are governed by the formation (via two-photon absorption), spontaneous and stimulated transformation and bleaching (via single-photon events) of Ge(1), Ge(2) and Ge(3) colour-centres. Using a tunable pulsed dye laser, the excitation spectrum of the induced absorption, its spectral attenuation and the effects of germania concentration and thermal annealing are investigated.

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Published date: 1988

Identifiers

Local EPrints ID: 78488
URI: https://eprints.soton.ac.uk/id/eprint/78488
ISSN: 0146-9592
PURE UUID: e9b88ae9-da2a-4e77-ac8d-5cc550296e1a

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

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