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S. Suzuki, H. A. McKay, X. Peng, L. Fu and L. Dong, “Highly Ytterbium-Doped Silica Fibers with Low Photo- Darkening,” Optics Express, Vol. 17, No. 12, 2009, pp. 9924-9932. doi:10.1364/OE.17.009924

has been cited by the following article:

• TITLE: Electron-Irradiation and Photo-Excitation Darkening and Bleaching of Yb Doped Silica Fibers: Comparison

  AUTHORS: Alexander V. Kir’yanov

  KEYWORDS: Ytterbium Doped Silica Fibers, Photodarkening, Electron Irradiation

  JOURNAL NAME: Optics and Photonics Journal, Vol.1 No.4, December 5, 2011

  ABSTRACT: We report a comparative experimental study of the attenuation spectra transformations for a series of Yb doped alumino-germano silicate fibers with different contents of Yb3+ dopants, which arise as the result of irradiation either by a beam of high-energy electrons or by resonant (into the 977-nm absorption peak of YbYb3+ ions) optical pumping. The experimental data obtained reveal that in the two circumstances, substantial and complex but different in appearance changes occur within the resonant absorption band of YbYb3+ ions and in the off-resonance background loss of the fibers. Possible mechanisms responsible for these spectral changes are discussed.