Measuring photodarkening from single-mode ytterbium doped silica fibers.

@article{Koponen2006MeasuringPF,
  title={Measuring photodarkening from single-mode ytterbium doped silica fibers.},
  author={J. Koponen and M. S{\"o}derlund and H. Hoffman and S. Tammela},
  journal={Optics express},
  year={2006},
  volume={14 24},
  pages={
          11539-44
        }
}
Photodarkening is recognized as a potentially important limiting factor on the lifetime and reliability of many Yb-doped fiber lasers and amplifiers. In particular, a photodarkening process attributed to the formation of photoinduced structural transformations can induce excess loss in the doped glass core of the fiber, resulting in reduced output power efficiency. Yet, quantifiable measurement techniques of this phenomenon have been scarce in the literature to date. Here we present a fast… Expand
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Time Response Characteristics of Photodarkening-Induced Loss in Yb-Doped Fiber Amplifier
  • Y. Feng, C. Codemard, +7 authors J. Nilsson
  • Materials Science
  • 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
  • 2019
Photodarkening (PD) can degrade the output power and increase the thermal load in Yb-doped fiber lasers and amplifiers by increasing the propagation loss in the core [1,2]. PD can be attributed toExpand
Thermal bleaching of photodarkening-induced loss in ytterbium-doped fibers.
TLDR
The thermal bleaching process of photodarkening-induced loss in ytterbium-doped fibers is studied to derive the activation energy associated with thermal recovery of the induced loss to prephotodarkened state. Expand
Measuring photodarkening from Ytterbium-doped fiber amplifier at 1064 nm wavelength emission
In this paper, photodarkening effect in Ytterbium doped fiber (YDF) amplifier is experimentally investigated and analyzed. The experimental measurement on such effect is conducted on an YDF amplifierExpand
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