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Photodarkening in Yb-doped Al-silicate fibers: Investigation, modelling and mitigation

: Taccheo, S.; Gebavi, H.; Piccoli, R.; Robin, T.; Lablonde, L.; Cadier, B.; Monteville, A.; Mechin, D.; Milanese, D.; Brand, T.; Klotzback, U.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Photonics Society:
16th International Conference on Transparent Optical Networks, ICTON 2014 : Graz, Austria, 6 July 2014 - 10 July 2014
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-5600-5
ISBN: 978-1-4799-5601-2
ISBN: 978-1-4799-5602-9
International Conference on Transparent Optical Networks (ICTON) <16, 2014, Graz>
Fraunhofer IWS ()

In this paper we review our work on study of Photodarkening in Yb-doped Al-silicate base. We propose a measurement set-up and we investigate the possibility of Photodarkening mitigation by using visible light photons. We also report measurement of excited-state-absorption from excited Yb ions that plays a fundamental role in the photodarkening phenomenon.