A. D. Guzman Chavez, A. V. Kir’yanov, Y. O. Barmenkov and N. N. Il’ichev, “Reversible Photo-Darkening and Resonant Photo-Bleaching of Ytterbium-Doped Silica Fiber at in-Core 977 nm and 543 nm Irradiation,” Laser Physics Letters, Vol. 4, No. 10, 2007, pp. 734-739. doi:10.1002/lapl.200710053

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.