Studies on output characteristics of stable dual-wavelength ytterbium-doped photonic crystal fiber laser. (29th April 2016)

• Record Type: Journal Article
• Authors: Tian, Hongchun; Zhang, Sa; Hou, Zhiyun; Xia, Changming; Zhou, Guiyao; Zhang, Wei; Liu, Jiantao; Wu, Jiale; Fu, Jian
• Is Part Of: Laser physics. Volume 26:Number 6(2016:Jun.)
• Publication Date: 2016-04-29
• Subjects: dual-wavelength -- powder sinter direction drawn rod technology -- fibre laser -- ytterbium-doped PCF; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1054-660X/26/6/065101
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: A stable dual-wavelength ytterbium-doped photonic crystal fiber laser pumped by a 976 nm laser diode has been demonstrated at room temperature. Single-wavelength, dual-wavelength laser oscillations are observed when the fiber laser operates under different pump power by using different length of fibers. Stable dual-wavelength radiation around 1045 nm and 1075 nm has been generated simultaneously at a high pump power directly from an ytterbium-doped fiber laser without using any spectral control mechanism. A small core ytterbium-doped PCF fabricated by the powder sinter direction drawn rod technology is used as gain medium. The pump power and fiber length which can affect the output characteristics of dual-wavelength fiber laser are analyzed in the experiment. Experiments confirm that higher pump power and longer fiber length favors 1075 nm output; lower pump power and shorter fiber length favors 1045 nm output. Those results have a good reference in multi-wavelength fiber laser.