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Spectroscopic properties of ions in glasses for -band optical amplifications
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Image of FIG. 1.
FIG. 1.

Partial energy-level diagram of ions. One of the cross-relaxation processes among ions is also shown.

Image of FIG. 2.
FIG. 2.

Wavelength dependence of the transmittances in the glasses.

Image of FIG. 3.
FIG. 3.

Effect of substitution on lifetime of the level in the glasses.

Image of FIG. 4.
FIG. 4.

-ion concentration dependence of lifetimes of the level in glasses.

Image of FIG. 5.
FIG. 5.

The decay trace of the level in a glass with the highest OH content. The -ion concentration was .

Image of FIG. 6.
FIG. 6.

Cross sections of the emission for the transition and the absorption for the transition in a glass.

Image of FIG. 7.
FIG. 7.

The temperature dependence of cross-relaxation rates of the route in a glass doped with .

Image of FIG. 8.
FIG. 8.

The temperature dependence of multiphonon relaxation rates of the level in a glass doped with .


Generic image for table
Table I.

Thermal properties of (mol %) glasses.

Generic image for table
Table II.

Total radiative transition rates of the level, radiative lifetimes , measured lifetime , and quantum efficiencies in (mol %) glasses.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spectroscopic properties of Tm3+ ions in PbO–PbF2–Bi2O3–Ga2O3 glasses for S-band optical amplifications