Confocal microscopy luminescence measurements were applied to study the X-ray radiation response ofEr/Yb-doped optical fibers in connection with H2 pre-loading and with the addition of another lanthanideelement (Cerium) in the core composition. Laser excitations at 488 nm and 325 nm allow deriving theemission and absorption pattern of Er3+, the latter derived from the dips appearing in a wide luminescenceband related to defects in silica. We found that the luminescence spectrum of the X-irradiated Er/Yb-dopedcore fiber evidences an increase in the emission intensity around 520 and 660 nm; in contrast, no changes areinduced by radiation neither after H2 pre-loading nor when the Cerium is added to the core composition. Bothtreatments reduce the generation of defects in the Er-doped fibers thus providing hardness in the radiativeenvironment.
|Numero di pagine||3|
|Rivista||Journal of Non-Crystalline Solids|
|Stato di pubblicazione||Published - 2011|
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry
Vivona, M., Cannas, M., Cadier, Vivona, Girard, Boukenter, Ouerdane, Marcandella, & Robin (2011). Inﬂuence of Ce codoping and H2 pre-loading on Er/Yb-doped ﬁber: Radiation response characterized by Confocal Micro-Luminescence. Journal of Non-Crystalline Solids, 357, 1963-1965.