Analysis of upconversion luminescence in germanate glass and optical fiber codoped with Yb3+/Tb3+

M Kochanowicz; J Zmojda; P Miluski; M Sitarz; J Pisarska; W A Pisarski; D Dorosz

doi:10.1364/AO.55.002370

Analysis of upconversion luminescence in germanate glass and optical fiber codoped with Yb³⁺/Tb³⁺

Appl Opt. 2016 Mar 20;55(9):2370-4. doi: 10.1364/AO.55.002370.

Authors

M Kochanowicz, J Zmojda, P Miluski, M Sitarz, J Pisarska, W A Pisarski, D Dorosz

PMID: 27140575
DOI: 10.1364/AO.55.002370

Abstract

In this paper, upconversion (UC) luminescence processes in a GeO₂-Ga₂O₃-BaO glass system codoped with 0.7Yb₂O₃/(0.07-0.7)Tb₂O₃ (mol.%) and double-clad optical fiber codoped with 0.7Yb₂O₃/0.7Tb₂O₃ (mol.%) were investigated. The highest emission intensity (energy transfer efficiency equals 12.92%) was obtained for 0.7Yb₂O₃/0.7Tb₂O₃ codoped glass. Comparative analysis showed significant differences in the shape of luminescence of fabricated germanate glass and optical fiber. Due to dominant transition from D₄5 sublevel the main green UC peak (Tb³⁺: D₄5→F₅7) of fabricated double-clad optical fiber is shifted by 4 nm toward longer wavelengths.

Publication types

Research Support, Non-U.S. Gov't