Peretti R, Jurdyc A-M, Jacquier B, Gonnet Cédric, Pastouret Alain, Burov Ekaterina, Cavani Olivier
Université de Lyon, Université Lyon 1, CNRS/LPCML,Villeurbanne F-69622, France.
Opt Express. 2010 Sep 13;18(19):20455-60. doi: 10.1364/OE.18.020455.
Ytterbium doped fiber lasers are known to be impacted by the creation of color centers during lasing so called photodarkening. This defect creation was investigated in a spectroscopic point of view, showing the presence of thulium traces (ppb) in the ytterbium doped fiber. Moreover, this contamination exhibit luminescence in the UV range under 976 nm excitation of the ytterbium-doped fiber. In adding more thulium to an ytterbium-doped fiber it was shown that thulium strongly impact the defects creation process, involved in photodarkening.
已知镱掺杂光纤激光器在激光发射过程中会受到所谓的光暗化现象影响，即色心的产生。从光谱学角度对这种缺陷的产生进行了研究，结果表明镱掺杂光纤中存在痕量铥（ppb）。此外，这种污染物在镱掺杂光纤976 nm激发下在紫外范围内会发光。在镱掺杂光纤中添加更多铥后发现，铥对参与光暗化的缺陷产生过程有强烈影响。
