Measuring photodarkening from single-mode ytterbium doped silica fibers.

  title={Measuring photodarkening from single-mode ytterbium doped silica fibers.},
  author={Joona J Koponen and M. S{\"o}derlund and H. Hoffman and S. Tammela},
  journal={Optics express},
  volume={14 24},
  • Joona J Koponen, M. Söderlund, +1 author S. Tammela
  • Published 2006
  • Medicine, Physics
  • Optics express
  • 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… CONTINUE READING
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