Generation of double-scale femto/pico-second optical lumps in mode-locked fiber lasers
Generation of double-scale femto/pico-second optical lumps in mode-locked fiber lasers
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DOI：
10.1364/oe.17.020707
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发表时间：
2009-11-09
期刊：
影响因子：
3.8
通讯作者：
Latkin, Anton
中科院分区：
文献类型：
--
作者：
Kobtsev, Sergey;Kukarin, Sergey;Latkin, Anton
在全正色散腔锁模的掺Yb光纤激光器中，由于非线性偏振演化的影响，观察到了稳定的皮秒脉冲序列和具有皮秒包络和飞秒类噪声振荡的双尺度光团的产生。在类噪声脉冲产生机制中，自相关函数具有非常见的双（毫微微和皮秒）尺度形状。我们讨论了两个操作制度之间的激光切换机制，并证明了一个很好的定性协议的实验结果和数值模拟的基础上修改的非线性薛定谔方程。(C)2009年美国光学学会
We observed generation of stable picoseconds pulse train and double-scale optical lumps with picosecond envelope and femtosecond noise-like oscillations in the same Yb-doped fiber laser with all-positive-dispersion cavity mode-locked due to the effect of non-linear polarization evolution. In the noise-like pulse generation regime the auto-correlation function has a non-usual double (femto- and picosecond) scale shape. We discuss mechanisms of laser switching between two operation regimes and demonstrate a good qualitative agreement between experimental results and numerical modeling based on modified nonlinear Schrodinger equations. (C) 2009 Optical Society of America