A Dual-Wavelength Cladding-Pumped Er^3＋/Yb^3＋ Codoped Fibre Laser System with More Than 2 W Output and Tunable Wavelength Spacing  

作　　者：刘艳格 张春书 孙婷婷 鲁云飞 袁树忠 开桂云 董孝义 

机构地区：[1]Institute of Modern Optics, Nankai University, Tianjin 300071 [2]Key Laboratory of Opto-Electronic Information Science and Technology (Ministry of Education), Nankai University, Tianjin 300071

出　　处：《Chinese Physics Letters》2006年第7期1793-1796,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation under Grant Nos 60407005 and 60137010, the National Key Basic Research and Development Programme of China under Grant No 2003CB314906, and the Tianjin Natural Science Foundation under Grant No 06YFJZJC00300.

摘　　要：A dual-wavelength laser system with wideband tunable wavelength spacing and more than 2 W output power is proposed and demonstrated. The operation principle of the laser system is based on the saturation gain characteristic of a cladding-pumped Era＋ /yba＋ co-doped fibre amplifier combining with a wideband tunable fibre laser with fiat power spectrum. The tuning range of the wavelength spacing is continuous within a 35 nm spectral range, and the power difference between both lasing wavelengths can be easily adjusted and controlled by a variable optical attenuator. The total output power can approximately keep unchangeable when the wavelength spacing and the power difference between both lasing wavelengths are continuously tuned and changed. The maximum total output power of the laser system is about 2.22 W.A dual-wavelength laser system with wideband tunable wavelength spacing and more than 2 W output power is proposed and demonstrated. The operation principle of the laser system is based on the saturation gain characteristic of a cladding-pumped Era＋ /yba＋ co-doped fibre amplifier combining with a wideband tunable fibre laser with fiat power spectrum. The tuning range of the wavelength spacing is continuous within a 35 nm spectral range, and the power difference between both lasing wavelengths can be easily adjusted and controlled by a variable optical attenuator. The total output power can approximately keep unchangeable when the wavelength spacing and the power difference between both lasing wavelengths are continuously tuned and changed. The maximum total output power of the laser system is about 2.22 W.

关 键 词：AMPLIFIER 

分 类 号：TN24[电子电信—物理电子学]