Multiphonon relaxation of rare-earth ions in beryllium-fluoride glass

1977 ◽  
Vol 16 (7) ◽  
pp. 3259-3261 ◽  
Author(s):  
C. B. Layne ◽  
M. J. Weber
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Fluoride Glass ◽  
Multiphonon Relaxation ◽  
Beryllium Fluoride

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 in the rare-earth ions doped laser crystals

1996 ◽  
Author(s):  
T.T. Basiev ◽  
Yu.V. Orlovskii ◽  
K.K. Pukhov ◽  
V.B. Sigachev ◽  
M.E. Doroshenko ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Multiphonon Relaxation ◽  
Laser Crystals ◽  
The Rare Earth

Multiphonon relaxation of mid-IR transitions of rare-earth ions in the crystals with fluorite structure

2001 ◽  
Vol 94-95 ◽  
pp. 791-795 ◽  
Author(s):  
Yu.V. Orlovskii ◽  
T.T. Basiev ◽  
K.K. Pukhov ◽  
I.N. Vorobiev ◽  
A.G. Papashvili ◽  
...  
Keyword(s):  
Rare Earth ◽  
Fluorite Structure ◽  
Rare Earth Ions ◽  
Multiphonon Relaxation
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