Correlation between radiative transition probabilities of rare-earth ions and composition in oxide glasses

1994 ◽  
Vol 178 ◽  
pp. 58-63 ◽  
Author(s):  
Hiromichi Takebe ◽  
Kenji Morinaga ◽  
Tetsuro Izumitani
Keyword(s):  
Rare Earth ◽  
Transition Probabilities ◽  
Radiative Transition ◽  
Rare Earth Ions ◽  
Oxide Glasses

Optical properties of oxide glasses with semiconductor nanoparticles co-doped with rare earth ions

2013 ◽  
Vol 588 ◽  
pp. 188-192 ◽  
Author(s):  
M.C. Neto ◽  
G.H. Silva ◽  
A.P. Carmo ◽  
A.S. Pinheiro ◽  
N.O. Dantas ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Semiconductor Nanoparticles ◽  
Rare Earth Ions ◽  
Oxide Glasses ◽  
Co Doped

Luminescent Properties of Rare Earth Doped AlF3-Based Glasses

1991 ◽  
Vol 244 ◽  
Author(s):  
L. R. Copeland ◽  
W. A. Reed ◽  
M. R. Shahriari ◽  
T. Iqbal ◽  
P. Hajcak ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optical Fibers ◽  
Luminescent Properties ◽  
Rare Earth Ions ◽  
Ion Concentration ◽  
Fluoride Glass ◽  
Oxide Glasses ◽  
Low Loss ◽  
Rare Earth Ion ◽  
Rare Earth Doped

ABSTRACTRare earth ions can easily be incorporated into fluoride glasses in moderate to large concentrations and, due to their low phonon energy, these glasses appear to have many advantages over oxide glasses as hosts for rare earth ions used in optical amplifiers and lasers. We have therefore investigated the optical properties of Pr3+, Pr3+/Yb3+ and Pr3+/Yb3+/Lu3+ doped bulk AIF3-based glass samples as a function of rare earth ion concentration. We find that the addition of 2 wt% of Yb increases the fluorescence of Pr3+ at 1.32 μm by a factor of 35 when excited with 488 nm radiation. The fluorescence intensity and excited state lifetimes are found to be comparable to those measured for Pr in a ZBLAN host. Since it has also been demonstrated that optical fibers drawn from AIF3-based glasses exhibit relatively low loss (< 0.05 dB/m) and posses superior chemical durability compared to other fluotide glasses, it is possible that AIF3 glasses may become the fluoride glass of choice for practical fiber laser and amplifier applications.

Multiphonon relaxation of rare-earth ions in oxide glasses

1977 ◽  
Vol 16 (1) ◽  
pp. 10-20 ◽  
Author(s):  
C. B. Layne ◽  
W. H. Lowdermilk ◽  
M. J. Weber
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Oxide Glasses ◽  
Multiphonon Relaxation

scholarly journals On the influence of low silica content on phosphates glasses doped with Erbium Ions

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Diogo Rúbio Sant'Anna das Dores ◽  
Victor Rocha da Silva ◽  
Geraldo Henriques Silva ◽  
Victor Hugo De Oliveira ◽  
Zélia Maria da Costa Ludwig ◽  
...  
Keyword(s):  
Rare Earth ◽  
Silicon Oxide ◽  
Glass Network ◽  
Spectroscopic Characterization ◽  
Radiative Transition ◽  
Infrared Emission ◽  
Silica Content ◽  
Rare Earth Ions ◽  
Oscillator Strengths ◽  
Erbium Ions

This work describes the spectroscopic characterization of a phosphate glass matrix doped with different Erbium concentrations. In order to increase the resistance of the glass, 3 mol %, of silicon oxide were added to the phosphate matrix. A study of the optical absorption, luminescence and lifetime was conducted in order to characterize the infrared emission of Er3+ ions at 1540 nm, due to the radiative transition 4I13/2 →4I15/2. Judd-Ofelt spectral analysis was carried out to determine the local structure and bonding in the vicinity of rare-earth ions. The experimental oscillator strengths calculated from the absorption spectra were used to evaluate the Judd-Ofelt intensity parameters Ωλ (λ = 2, 4 and 6). Changes in the glass density, refractive index and the values of Ω4 and Ω6 with different rare-earth concentrations are ascribed to changes in the glass network structure. Our results indicate that the present glass is a quite good matrix for Erbium ions, and the quantum efficiency of the 1540 nm emission was high. No quenching mechanisms were detected up to 2% of Erbium concentration.

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