Fu Shijie, Shi Wei, Lin Jichao, Fang Qiang, Sheng Quan, Zhang Haiwei, Wen Jinwei, Yao Jianquan
Opt Lett. 2015 Nov 15;40(22):5283-6. doi: 10.1364/OL.40.005283.
A single-frequency fiber laser operating at 1950 nm has been demonstrated in an all-fiber distributed Bragg reflection laser cavity by using a 1.9 cm commercially available thulium-doped silica fiber, for the first time, to the best of our knowledge. 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 at different pump power have been measured and analyzed.
据我们所知，首次在全光纤分布式布拉格反射激光腔中，通过使用一根1.9厘米长的商用掺铥石英光纤，演示了一种工作在1950纳米的单频光纤激光器。该激光器由一个793纳米的单模二极管激光器泵浦，阈值泵浦功率为75毫瓦。单纵模激光器的最大输出功率为18毫瓦，相对于注入泵浦功率的斜率效率为11%。此外，还测量和分析了不同泵浦功率下的线宽和相对强度噪声。
