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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 2, Iss. 4 — Apr. 10, 2004
  • pp: 229–231

Spectroscopic properties of Er^(3+)-doped AlF_(3)-La_(2)O_(3)-Al_(2)O_(3)-SiO_(2) glasses

Debao Zhang, Baoyu Chen, Zhuping Liu, Shunguang Li, and Lili Hu  »View Author Affiliations


Chinese Optics Letters, Vol. 2, Issue 4, pp. 229-231 (2004)


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Abstract

Er^(3+)-doped fluoride lanthanum aluminosilicate glasses with compositions of (65-x/2)SiO_(2).(25-x/2)Al_(2)O_(3).xAlF_(3).9.1La_(2)O_(3).0.6Er_(2)O_(3).0.3Yb_(2)O_(3) (x = 4, 8, 12, 20, 30) (mol%) were prepared and their glass transitiontemperatures and spectroscopic properties were investigated. The ?_(2), ?_(4), and ?_(6) intensity parameters of glasses were calculated by Judd-Ofelt theory from absorption curves. It was found that glasses transition temperature and melting temperature decreased with the increase of fluoride content in glass, ?_(2) decreased gradually with the increase of AlF_(3) content, but both ?_(4) and ?_(6) did not increase until AlF_(3) content increased to 30 mol%. The quantum efficiency of ^(4)I_(13/2) to ^(4)I_(15/2) transition of Er^(3+) ions increases with the increase of AlF_(3) content in glass. Fluorescent lifetime is longer in glass containing more AlF_(3) content.

© 2005 Chinese Optics Letters

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.5690) Materials : Rare-earth-doped materials

Citation
Debao Zhang, Baoyu Chen, Zhuping Liu, Shunguang Li, and Lili Hu, "Spectroscopic properties of Er^(3+)-doped AlF_(3)-La_(2)O_(3)-Al_(2)O_(3)-SiO_(2) glasses," Chin. Opt. Lett. 2, 229-231 (2004)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-2-4-229

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