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.
Vivona, M., Girard, S., Robin, T., Cadier, B., Vaccaro, L., Cannas, M., et al. (2012). Role of Ce3+ as sensitizer for the infrared luminescence of phosphosilicate Er/Yb doped glasses. IEEE PHOTONICS TECHNOLOGY LETTERS, 24, 509-511 [10.1109/LPT.2011.2182644].
Role of Ce3+ as sensitizer for the infrared luminescence of phosphosilicate Er/Yb doped glasses
VIVONA, Marilena;VACCARO, Lavinia;CANNAS, Marco;
2012-01-01
Abstract
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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