Role of aluminium in ytterbium-erbium codoped phosphoaluminosilicate optical fibres
Role of aluminium in ytterbium-erbium codoped phosphoaluminosilicate optical fibres
We report on a series of ytterbium - erbium codoped aluminophosphosilicate fibres fabricated by the MCVD and solution doping technique where the concentration of aluminium is gradually increased in the region [Al] < [P]. We observe from deflection measurements that with increasing aluminium content the refractive index decreases and the phase separation increases. Laser slope efficiencies decrease when the aluminium concentration approaches the phosphorus concentration and the trend is seen to be correlated with the reduction in energy transfer rate when the aluminium concentration is increased. Raman spectra show the reduction of the highest phonon energy peak when the aluminium content is increased. The erbium 4 I 13/2 to 4 I 15/2 transition fluorescence spectrum and the lifetime of the erbium 4S3/2 level show little change from the pure phosphosilicate host for the whole range of aluminium concentrations tested. The results are explained in term of formation of AlPO4 structural units.
387-393
Vienne, G.G.
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Brocklesby, W.S.
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Brown, R.S.
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Chen, Z.J.
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Minelly, J.D.
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Payne, D.N.
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October 1996
Vienne, G.G.
22cbd5f5-9bfa-4a99-bb20-59d67332f160
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Brown, R.S.
a617c5b4-9417-4f00-8675-4ce60e757d29
Chen, Z.J.
eda71f6e-1cc0-4347-933b-f9ce925a03c2
Minelly, J.D.
5f4c7b1a-99ee-4746-9e3c-4cb420615c50
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Vienne, G.G., Brocklesby, W.S., Brown, R.S., Chen, Z.J., Minelly, J.D. and Payne, D.N.
(1996)
Role of aluminium in ytterbium-erbium codoped phosphoaluminosilicate optical fibres.
Optical Fiber Technology, 2 (4), .
(doi:10.1006/ofte.1996.0044).
Abstract
We report on a series of ytterbium - erbium codoped aluminophosphosilicate fibres fabricated by the MCVD and solution doping technique where the concentration of aluminium is gradually increased in the region [Al] < [P]. We observe from deflection measurements that with increasing aluminium content the refractive index decreases and the phase separation increases. Laser slope efficiencies decrease when the aluminium concentration approaches the phosphorus concentration and the trend is seen to be correlated with the reduction in energy transfer rate when the aluminium concentration is increased. Raman spectra show the reduction of the highest phonon energy peak when the aluminium content is increased. The erbium 4 I 13/2 to 4 I 15/2 transition fluorescence spectrum and the lifetime of the erbium 4S3/2 level show little change from the pure phosphosilicate host for the whole range of aluminium concentrations tested. The results are explained in term of formation of AlPO4 structural units.
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Published date: October 1996
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Local EPrints ID: 78085
URI: http://eprints.soton.ac.uk/id/eprint/78085
ISSN: 1068-5200
PURE UUID: b5557070-d4b3-407a-8742-542df5f71f1a
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:34
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Author:
G.G. Vienne
Author:
R.S. Brown
Author:
Z.J. Chen
Author:
J.D. Minelly
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