Abstract

We show that the photodarkening resistivity of ytterbium-doped fiber lasers can be greatly improved by cerium codoping. It is suggested that the coexistence of the redox couple ${\mathrm{Ce}}^{3+}∕{\mathrm{Ce}}^{4+}$ in the glass provides means for trapping both hole- and electron-related color centers that are responsible for the induced optical losses in Yb-doped fiber lasers.

© 2009 Optical Society of America

Thermoluminescence characterization of traps involved in the photodarkening of ytterbium-doped silica fibers

Franck Mady, Mourad Benabdesselam, and Wilfried Blanc
Opt. Lett. 35(21) 3541-3543 (2010)

Preventing photodarkening in ytterbium-doped high power fiber lasers; correlation to the UV-transparency of the core glass

M. Engholm and L. Norin
Opt. Express 16(2) 1260-1268 (2008)

Thermal bleaching of photodarkening-induced loss in ytterbium-doped fibers

Mikko J. Söderlund, Joan J. Montiel i Ponsoda, Jeffrey P. Koplow, and Seppo Honkanen
Opt. Lett. 34(17) 2637-2639 (2009)

Heat-induced darkening and spectral broadening in photodarkened ytterbium-doped fiber under thermal cycling

Mikko J. Söderlund, Joan J. Montiel i Ponsoda, Jeffrey P. Koplow, and Seppo Honkanen
Opt. Express 17(12) 9940-9946 (2009)

Photodarkening-resistance improvement of Yb³⁺/Al³⁺ co-doped silica fibers fabricated via sol-gel method

Fenghou Xie, Chongyun Shao, Meng Wang, Qinling Zhou, Fengguang Lou, Wenbin Xu, Chunlei Yu, Suya Feng, and Lili Hu
Opt. Express 26(22) 28506-28516 (2018)