论文标题
来自频谱滤波弱的全非正常分散纤维激光器的噪声样脉冲
Noise-like Pulses from an All-Normal-Dispersion Fiber Laser with Weakened Spectrum Filtering
论文作者
论文摘要
在许多领域，人们都非常追求噪声状的脉冲（NLP）。在这里，我们通过实验和数值研究了具有弱频谱滤波的全正常分散纤维激光器中噪声样脉冲的产生。通过将光栅作为可调频谱滤光片插入，激光器以3.84 PS的持续时间在稳定的耗散孤子状态下运行。用镜子代替镜子，最终获得了双尺度强度自相关痕迹的NLP。详细执行数值模拟，并证明在没有光谱滤波器的情况下，无法确定稳定状态，而是形成随机脉冲簇。随机脉冲簇通过合适的反馈实现动态稳定性，最终生成了NLP。此处的NLP直接是由初始噪声进化的，并且在其演变过程中没有其他状态发生。这些探索可以加深对NLP的理解，并丰富Andi超快激光器的复杂动力学。
Noise-like pulses (NLP) are extremely sought after in many fields. Here, we experimentally and numerically investigated the generation of noise-like pulses in an all-normal-dispersion fiber laser with weak spectrum filtering. With the insertion of the grating as a tunable spectrum filter, the laser operates at a stable dissipative soliton state with a 3.84 ps duration. Replacing the grating with a mirror, NLPs with double-scale intensity autocorrelation trace is ultimately attained. Numerical simulations are performed in detail and demonstrated that with the absence of a spectrum filter, the stable state cannot be established but form the random pulse cluster. The random pulse cluster achieves dynamic stability with suitable feedback, and the NLP is ultimately generated. The NLP here is directly evolved by the initial noise, and no other states occur during its evolution. These explorations could deepen the understanding of NLP and enrich the complex dynamics of the ANDi ultrafast fiber laser.
