Silicate-clad Dy3+ doped multi-component phosphate glass core glass fiber for yellow laser applications
2021
Abstract In this work, strong yellow emission was obtained in Dy3+ doped multi-component phosphate glass due to its high asymmetry and covalency of the local field and high phonon energy. The internal quantum efficiency was measured to be 39.27% and the figure of merit was calculated to be 210.53 pm2 × μs. What is more, silicate-clad Dy3+ doped multi-component phosphate core glass fiber was successfully drawn by using a rod-in-tube method, which has a strong fluorescence emission in yellow spectra band. The Dy3+ doping concentration is 2.6 wt.%, which is much larger than that of Dy3+ doped (0.2 wt.%) ZBLAN fiber. These results suggest that the silicate-clad Dy3+ doped multi-component phosphate glass fibers are potential host matrices for yellow laser.
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