Impact of Al2O3 doping on Bi active center photobleaching in Bi/Er-codoped fibers

Shuen Wei; Yanhua Luo; Bowen Zhang; Ming Lu; Mingjie Ding; Yitao Wang; Matthieu Lancry; Gang-Ding Peng

doi:10.1364/OL.394339

Impact of Al₂O₃ doping on Bi active center photobleaching in Bi/Er-codoped fibers

Opt Lett. 2020 Jul 15;45(14):4016-4019. doi: 10.1364/OL.394339.

Authors

Shuen Wei, Yanhua Luo, Bowen Zhang, Ming Lu, Mingjie Ding, Yitao Wang, Matthieu Lancry, Gang-Ding Peng

PMID: 32667343
DOI: 10.1364/OL.394339

Abstract

In this Letter, the impact of Al₂O₃ doping on the Bi active center (BAC) photobleaching is investigated in Bi/Er-codoped fibers (BEDFs). By measuring the evolution of emission attributed to the BAC associated with silica (BAC-Si) at ∼1400nm, the linear relationship between the ratio of unbleached/bleached part (γ_UB/γ_B) and 830 nm irradiation intensity (P₈₃₀) was revealed in the log-log plot. The experimental results demonstrate that Al₂O₃ doping or its induced defects could be one key factor exaggerating the BAC photobleaching in BEDFs.