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Measurement of photodarkening in Yb-doped aluminosilicate fibres at elevated temperature

Measurement of photodarkening in Yb-doped aluminosilicate fibres at elevated temperature
Measurement of photodarkening in Yb-doped aluminosilicate fibres at elevated temperature
Photodarkening behaviour in Yb-doped aluminosilicate fibres at elevated temperatures is reported. The fibre was core-pumped at 977 nm and the transmitted powers were monitored at 633 (probe) and 977 nm (pump) simultaneously with ~47% of population inversion of Yb3+ ions. A saturated photodarkening loss was found, which is inversely proportional to temperature and, at ~573 K, the loss was negligible at the pump wavelength. From the decay curves at different temperatures, it was found that the photodarkening involves second-order kinetics to form colour centres.
0013-5194
233-234
Yoo, S.
ac010340-3162-4d0f-8a56-2892051915fc
Boyland, A.J.
e6e842e6-0fe6-4de2-a9b8-ca44f30ab4d5
Standish, R.J.
ce563e93-d448-47d3-90d9-bf4dd62af9f6
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Yoo, S.
ac010340-3162-4d0f-8a56-2892051915fc
Boyland, A.J.
e6e842e6-0fe6-4de2-a9b8-ca44f30ab4d5
Standish, R.J.
ce563e93-d448-47d3-90d9-bf4dd62af9f6
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2

Yoo, S., Boyland, A.J., Standish, R.J. and Sahu, J.K. (2010) Measurement of photodarkening in Yb-doped aluminosilicate fibres at elevated temperature. Electronics Letters, 46 (3), 233-234. (doi:10.1049/el.2010.2517).

Record type: Article

Abstract

Photodarkening behaviour in Yb-doped aluminosilicate fibres at elevated temperatures is reported. The fibre was core-pumped at 977 nm and the transmitted powers were monitored at 633 (probe) and 977 nm (pump) simultaneously with ~47% of population inversion of Yb3+ ions. A saturated photodarkening loss was found, which is inversely proportional to temperature and, at ~573 K, the loss was negligible at the pump wavelength. From the decay curves at different temperatures, it was found that the photodarkening involves second-order kinetics to form colour centres.

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Published date: February 2010

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Local EPrints ID: 179481
URI: https://eprints.soton.ac.uk/id/eprint/179481
ISSN: 0013-5194
PURE UUID: ab1bc70c-22c2-4ab6-b5a5-d69d2de817be

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Date deposited: 01 Apr 2011 14:10
Last modified: 18 Jul 2017 12:03

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Contributors

Author: S. Yoo
Author: A.J. Boyland
Author: R.J. Standish
Author: J.K. Sahu

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