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11 March 2016 2μm single frequency fiber laser based on thulium-doped silica fiber
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Single-frequency fiber laser operating at 1950 nm has been demonstrated in an all-fiber distributed Bragg reflection (DBR) laser cavity by using a 1.9-cm commercial available Thulium-doped silica fiber, for the first time. The laser was pumped by a 793-nm single-mode diode laser and had a threshold pump power of 75 mW. The maximum output power of the single longitudinal mode laser was 18 mW and the slope efficiency with respect to the launched pump power was 11%. Moreover, the linewidth and relative intensity noise (RIN) at different pump power has been measured and analyzed. The successful demonstration with the Thulium-doped silica fiber used here is considered to further promote the commercialization of single frequency fiber laser at 2 μm.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shijie Fu, Wei Shi, Jichao Lin, Qiang Fang, Quan Sheng, Haiwei Zhang, Jinwei Wen, and Jianquan Yao "2μm single frequency fiber laser based on thulium-doped silica fiber", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 972811 (11 March 2016);


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