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.
Received: 05 November 2004
Revised: 18 January 2005
Published: 27 May 2005
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