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Chin. Phys., 2005, Vol. 14(6): 1250-1254    DOI: 10.1088/1009-1963/14/6/034
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Spectroscopic properties and thermal stability of Er3+/Yb3+-codoped fluorophosphate glasses

Li Taoa, Zhang Qin-Yuana, Zhao Chuna, Feng Zhou-Minga, Shi Dong-Meia, Deng Zai-Dea, Jiang Zhong-Hongb
a Institute of Optical Communication Materials, South of China University of Technology Guangzhou 510640; b Institute of Optical Communication Materials, South of China University of Technology Guangzhou 510640;Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Abstract  A comprehensive study on the thermal stability and spectroscopic properties of Er3+/Yb3+-codoped Al(PO3)3-based fluorophosphate glasses have been reported for 1.5-mm fiber amplifiers in this paper. From optical absorption spectra, the Judd-Ofelt parameters of Er3+ in the glasses and then several important optical properties, i.e., the radiative transition probability, the branching ratio and the spontaneous emission probability, have been calculated by Judd-Ofelt theory. The fluorophosphate glass exhibits broadband near-infrared emission at 1.53 mm with a full width at half-maximum over 63 nm, and a large calculated stimulated-emission cross-section of 6.85×10-21 cm2.
Keywords:  Judd-Ofelt parameters      Fluorophosphate glasses      Spectroscopic properties.  
Received:  05 November 2004      Revised:  18 January 2005      Published:  27 May 2005
PACS:  78.30.Ly (Disordered solids)  
  78.55.Qr (Amorphous materials; glasses and other disordered solids)  
  78.45.+h (Stimulated emission)  
Fund: Supported by National Natural Science Foundation of China (50472053), Natural Science Foundation of Guangdong Prov. (04020036) and Science & technology Program of Guangzhou, Guangdong Prov. (2004Z2-D0131).

Cite this article: 

Li Tao, Zhang Qin-Yuan, Zhao Chun, Feng Zhou-Ming, Shi Dong-Mei, Deng Zai-De, Jiang Zhong-Hong Spectroscopic properties and thermal stability of Er3+/Yb3+-codoped fluorophosphate glasses 2005 Chin. Phys. 14 1250

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