Erbium-doped silica-germania sputtered films: photorefractivity and photoluminescence (Comunicazione a convegno)

Type
Label
  • Erbium-doped silica-germania sputtered films: photorefractivity and photoluminescence (Comunicazione a convegno) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • G. Nunzi Conti, S. Pelli, G.C. Righini, S. Sebastiani, A. Chiasera, M. Ferrari, et al (2005)
    Erbium-doped silica-germania sputtered films: photorefractivity and photoluminescence
    in AIOM 2005 The First Conference on Advances in Optical Materials, Tucson, Arizona, October 12-16, 2005
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G. Nunzi Conti, S. Pelli, G.C. Righini, S. Sebastiani, A. Chiasera, M. Ferrari, et al (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IFAC-CNR, Ist. di Fisica Applicata \"N. Carrara\", Firenze; Ist. Fotonica e Nanotecnologie, Trento (literal)
Titolo
  • Erbium-doped silica-germania sputtered films: photorefractivity and photoluminescence (literal)
Abstract
  • We report on the fabrication and spectroscopic characterization of highly photorefractive Er3+/Yb3+ co-activated silica-germania planar waveguides, single mode at 1550 nm, deposited by radio-frequency magnetron-sputtering technique. Details of the sputtering procedure are reported. The structural properties of the waveguides were investigated by Raman spectroscopy. Guiding properties of the films were tested by m-line measurements at different wavelengths, and propagation losses measured at 633nm and 1300nm. The emission of the 4I13/2 ? 4I15/2 transition of the Er3+ ion was observed upon excitation of the TE0 mode at 980 and 514.5 nm. Back energy transfer from Er3+ to Yb3+ was demonstrated by measurement of Yb3+ emission upon Er3+ excitation at 514.5 nm. Photoluminescence excitation spectroscopy was used to obtain information about the Yb3+ to Er3+ energy transfer process. (literal)
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