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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 10 — Oct. 1, 2012
  • pp: 101601–101601

Spectroscopic properties of thulium ions in bismuth silicate glass

Xin Wang, Lili Hu, Kefeng Li, Ying Tian, and Sijun Fan  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 10, pp. 101601-101601 (2012)


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Abstract

A new type of bismuth silicate glass (Bi<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-ZnO-Al<sub>2</sub>O<sub>3</sub>-La<sub>2</sub>O<sub>3</sub>) doped with Tm<sub>2</sub>O<sub>3</sub> is prepared by melt-quenching method. The thermal stability of the glass is examined by differential scanning calorimetry. No crystallization peak is found. Using the absorption and emission spectra, the absorption and emission cross-sections are calculated. Their maximum data are 2.9×10<sup>-21</sup> cm<sup>2</sup> at 1 663 nm and 4.7×10<sup>-21</sup> cm<sup>2</sup> at 1 826 nm, respectively. Using the Judd-Ofelt theory, the radiation transition probabilities and radiative lifetimes are obtained. The extended overlap integral method is applied to analyze energy transfer process among the Tm<sup>3+</sup> ions. The transfer constants of cross-relaxation and energy migration among the Tm<sup>3+</sup> ions at the <sup>3</sup>H<sub>4</sub> level are 7.60×10<sup>-40</sup> and 14.98×10<sup>-40</sup> cm<sup>6</sup>/s, respectively. The critical transfer radius for cross-relaxation is 0.99 nm. The cross relaxation process is easy to realize and is favorable for obtaining ~2-μm laser.

© 2012 Chinese Optics Letters

OCIS Codes
(160.2290) Materials : Fiber materials
(160.2750) Materials : Glass and other amorphous materials
(160.3380) Materials : Laser materials
(160.4670) Materials : Optical materials
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Materials

Citation
Xin Wang, Lili Hu, Kefeng Li, Ying Tian, and Sijun Fan, "Spectroscopic properties of thulium ions in bismuth silicate glass," Chin. Opt. Lett. 10, 101601-101601 (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-10-101601

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