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Photodarkening in Yb/Al/Ce Optical Fibers: Study of Photoinduced Defects by Electron Paramagnetic Resonance

D. Milanese, M. Chiesa, K. Mattson, H. Gebavi, S. Taccheo, T. Robin, L. Lablonde, D. Mechin, and A. Monteville

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Abstract

Yb/Ce/Al silica fiber preforms were studied by means of Electron Paramagnetic Resonance before and after exposure to high energy photons. Clustering of Yb3+ ions and creation of Al-OHC and Si-E’ defects were observed.

© 2013 Optical Society of America

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