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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. 9 — Sep. 1, 2012
  • pp: 091601–091601

Efficient 2.7-μm emission in Er3+-doped bismuth germanate glass pumped by 980-nm laser diode

Guoying Zhao, Ying Tian, Huiyan Fan, Junjie Zhang, and Lili Hu  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 9, pp. 091601-091601 (2012)


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Abstract

An Er<sup>3+</sup>-doped lead-free bismuth germanate glass is synthesized. Its 2.7-μm emission property is analyzed, and the efficient 2.7-μm emission from the glass is observed under 980-nm laser diode excitation. The prepared glass possesses high spontaneous transition probability (64.8 s<sup>-1</sup>) and a large calculated emission cross section (6.61 × 10<sup>-21</sup> cm<sup>2</sup>) corresponding to the <sup>4</sup>I<sub>11/2</sub> -> <sup>4</sup>I<sub>13/2</sub> transition. The multiphonon relaxation rate for the excited state <sup>4</sup>I<sub>11/2</sub> is only 236 s<sup>-1</sup>. Therefore, the excellent spectroscopic properties and outstanding thermal stability suggest that this glass is a suitable host for developing solid-state lasers operating in the mid-infrared.

© 2012 Chinese Optics Letters

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.4760) Materials : Optical properties
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Materials

Citation
Guoying Zhao, Ying Tian, Huiyan Fan, Junjie Zhang, and Lili Hu, "Efficient 2.7-μm emission in Er3+-doped bismuth germanate glass pumped by 980-nm laser diode," Chin. Opt. Lett. 10, 091601-091601 (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-9-091601


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