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Influence of {\rm Ce}^{3+} Codoping on the Photoluminescence Excitation Channels of Phosphosilicate Yb/Er-Doped Glasses

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8 Author(s)
Vivona, M. ; Lab. Hubert Curien, Univ. St-Etienne, St. Etienne, France ; Girard, S. ; Robin, T. ; Cadier, B.
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The luminescence properties of the Yb/Er-doped phosphosilicate preforms used for the design of active optical fibers were investigated under a tunable laser excitation from ultraviolet to infrared domain. We demonstrated that codoping the glass matrix with Ce3+ ions strongly influences the infrared emission associated with Er3+ ions, it enhances the energy transfer from Yb3+ to Er3+ ions, and it provides an additional ultraviolet excitation channel for the emission of both Yb3+ and Er3+ ions. The excitation/emission pathways are discussed on the basis of models proposed in literature for other systems.

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Photonics Technology Letters, IEEE  (Volume:24 ,  Issue: 6 )