Zhang Lei, El-Damak A R, Feng Yan, Gu Xijia
Shanghai Key Laboratory of Solid State Laser and Application, and Shanghai Institute of Optics and fine Mechanics, Chinese Academy of Sciences, Qinghe Road 390, Jiading, Shanghai 201800, China.
Opt Express. 2013 May 20;21(10):12014-21. doi: 10.1364/OE.21.012014.
An ytterbium-doped mode-locked fiber laser was demonstrated with a chirped fiber Bragg grating for dispersion management. The cavity net dispersion could be changed from large normal dispersion (2.4 ps(2)) to large anomalous dispersion (-2.0 ps(2)), depending on the direction of the chirped Bragg grating in laser cavity. The proposed fiber lasers with large normal dispersion generated stable pulses with a pulse width of <1.1 ns and a pulse energy of 1.5 nJ. The laser with large anomalous dispersion generated wavelength-tunable soliton with a pulse width of 2.7 ps and pulse energy of 0.13 nJ. A theoretical model was established and used to verify the experimental observations.
利用啁啾光纤布拉格光栅进行色散管理，演示了一种掺镱锁模光纤激光器。根据啁啾布拉格光栅在激光腔内的方向，腔净色散可从大正色散（2.4 ps²）变为大负色散（-2.0 ps²）。所提出的具有大正色散的光纤激光器产生了脉宽<1.1 ns、脉冲能量为1.5 nJ的稳定脉冲。具有大负色散的激光器产生了脉宽为2.7 ps、脉冲能量为0.13 nJ的波长可调谐孤子。建立了理论模型并用于验证实验观察结果。
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