Mitigation of photodarkening effect in Yb-doped fiber through Na+ ions doping.

Abstract

In this work, Na+ ions doping into the Yb-doped fiber is proposed to improve the photo-darkening resistance. The results show that the photo-darkening induced excess loss at equilibrium state at 633nm, 702 nm, 810 nm, and 1041 nm is 115.54dB/m, 86.87dB/m, 25.51 dB/m, 2.92 dB/m, respectively, when co-doping with Na+ ions. More than 30% excess loss is reduced… (More)
DOI: 10.1364/OE.25.018191

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