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Yb2O3 doped yttrium-alumino-silicate nano-particles based LMA optical fibers for high-power fiber lasers

Paul, M.C., Kir'yanov, A.V., Barmenkov, Yu.O., Das, S., Pal, M., Bhadra, S.K., Yoo, S., Boyland, A.J., Sahu, J.K., Martinez-Gamez, A. and Lucio-Martínez, J.L. (2012) Yb2O3 doped yttrium-alumino-silicate nano-particles based LMA optical fibers for high-power fiber lasers Journal of Lightwave Technology, 30, (13), pp. 2062-2068. (doi:10.1109/JLT.2012.2191391).

Record type: Article

Abstract

Yb2O3 doped yttrium-rich alumino-silicate nanoparticles based D- and P- (pentagonal) shaped optical fibers with core diameter ~30-35 µm are fabricated using the conventional MCVD process and solution doping technique. Parameters of different stages of the fiber preforms fabrication are optimized to get uniform distributions of Al, Y, F, and Yb ions in the core region, ensured by the data of an EPMA analysis. In the presence of small amounts of fluorine, the size of nano-particles is maintained within 5-10 nm; the EDX data reveal that the nano-particles are rich in yttrium-alumino-silicate phase and are dispersed uniformly across the preforms core. The critical parameters of the processes involved at the fibers fabrication along with the nano-structuring and spectroscopic features are highlighted. It is shown experimentally that the drawn D- and P- shaped fibers support high laser efficiency (80% at 976-nm pumping) and demonstrate negligible photodarkening.

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More information

Published date: 3 April 2012
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 337959
URI: http://eprints.soton.ac.uk/id/eprint/337959
ISSN: 0733-8724
PURE UUID: 943c4a75-3fd3-4c1e-ba77-7bee589ffe76

Catalogue record

Date deposited: 08 May 2012 13:17
Last modified: 18 Jul 2017 05:59

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Contributors

Author: M.C. Paul
Author: A.V. Kir'yanov
Author: Yu.O. Barmenkov
Author: S. Das
Author: M. Pal
Author: S.K. Bhadra
Author: S. Yoo
Author: A.J. Boyland
Author: J.K. Sahu
Author: A. Martinez-Gamez
Author: J.L. Lucio-Martínez

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