YbPO4 crystals in as-drawn silica-based optical fibers
- Others:
- Institut de Physique de Nice (INPHYNI) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)
- Centre de Mise en Forme des Matériaux (CEMEF) ; Mines Paris - PSL (École nationale supérieure des mines de Paris) ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)
- University of Tampere [Finland]
- Centre Pluridisciplinaire de Microscopie Electronique et de Microanalyse (AMU CP2M) ; Aix Marseille Université (AMU)
- Centre Commun de Microscopie Appliquée (CCMA) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS)
Description
MCVD germanosilica glass embedded with YbPO4 crystals were for the first time drawn into optical fibers. Solution doping was used to embed the crystals in the silica soot prior to the collapsing step. We demonstrate, using scanning/transmission electron microscopes and confocal Raman microscope, that YbPO4 crystals survive not only the MCVD process but also the drawing process despite the high temperature involved (up to 2100 °C) during fabrication processes. The fiber contains 100 nm-crystals with the same composition and structure as the as-prepared crystals. During the drawing process, these crystals tend to have a preferential orientation of their c-axis along the drawing direction. These results open a new route to fabricate glass-based composite fibers containing crystalline particles without additional post heat-treatment.
Additional details
- URL
- https://hal.science/hal-04285924
- URN
- urn:oai:HAL:hal-04285924v1
- Origin repository
- UNICA