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Proceedings Paper

Impact of photodarkening on Yb lifetime in Al-silicate fibres and on the rate-equation system
Author(s): Riccardo Piccoli; Thierry Robin; David Méchin; Stefano Taccheo
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Paper Abstract

In this paper we report our investigation on the lifetime reduction in ytterbium doped aluminosilicate fibers due to the pump induced photodarkening (PD). We show a linear correlation between equilibrium lifetime reduction and equilibrium losses due to PD and a squared-law dependence between lifetime reduction at equilibrium and dopant concentration (wt%). Finally, we did not observe interplay between PD and quenching effect. The quantitative analysis carried out allows to determine the photodarkening quenching term in the laser rate equations system to properly model laser device.

Paper Details

Date Published: 7 March 2014
PDF: 6 pages
Proc. SPIE 8982, Optical Components and Materials XI, 89820T (7 March 2014); doi: 10.1117/12.2039007
Show Author Affiliations
Riccardo Piccoli, Swansea Univ. (United Kingdom)
Thierry Robin, iXFiber S.A.S. (France)
David Méchin, PERFOS (France)
Stefano Taccheo, Swansea Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 8982:
Optical Components and Materials XI
Michel J. F. Digonnet; Shibin Jiang, Editor(s)

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