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Complete energy transfer due to rare-earth phase segregation in optical fiber preform glasses
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10.1063/1.3657852
/content/aip/journal/jap/110/8/10.1063/1.3657852
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/8/10.1063/1.3657852

Figures

Image of FIG. 1.
FIG. 1.

Absorption spectrum of the 1.6 wt. % Tm3+–4.6 wt% Yb3+ co-doped sample.

Image of FIG. 2.
FIG. 2.

UC spectrum of the 1.6 wt. % Tm3+–4.6 wt% Yb3+ co-doped sample excited at 950 nm.

Image of FIG. 3.
FIG. 3.

(Color online) Dependence of the UC intensity on the excitation pump power. Top line of squares for the 800-nm band, bottom line of squares for the 480-nm band.

Image of FIG. 4.
FIG. 4.

(Color online) Scheme of the proposed ETU mechanism.

Image of FIG. 5.
FIG. 5.

Integrated intensity of the (a) 480-nm and (b) 800-nm UC emission bands of the Tm3+–Yb3+ co-doped glasses.

Image of FIG. 6.
FIG. 6.

(Color online) Luminescence decay of the (a) 2F5/2 level of the Yb3+ ion under direct excitation at 925 nm, (b) 1G4 level of the Tm3+ ion measured at 480 nm, and (c) 3H4 level of the Tm3+ ion measured at 800 nm when excited at 975 nm. Inset shows a detail of the (b) and (c) decays.

Tables

Generic image for table
Table I.

Main parameters of the fiber preform glasses used in the study

Generic image for table
Table II.

Characteristic parameters of the RE-rich and RE-poor phases of the core glass

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/content/aip/journal/jap/110/8/10.1063/1.3657852
2011-10-31
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Complete energy transfer due to rare-earth phase segregation in optical fiber preform glasses
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/8/10.1063/1.3657852
10.1063/1.3657852
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