Yun Ling
Opt Express. 2017 Aug 7;25(16):18751-18759. doi: 10.1364/OE.25.018751.
We report the generation of both polarization-locked vector dissipative soliton and group velocity-locked vector conventional soliton in a nanotube-mode-locked fiber ring laser with large normal dispersion, for the first time to our best knowledge. Depending on the polarization-depended extinction ratio of the fiber-based Lyot filter, the two types of vector solitons can be switched by simply tuning the polarization controller. In the case of low filter extinction ratio, the output vector dissipative soliton exhibits steep spectral edges and strong frequency chirp, which presents a typical pulse duration of ~23.4 ps, and can be further compressed to ~0.9 ps. In the contrastive case of high filter extinction ratio, the vector conventional soliton has clear Kelly sidebands with transform-limited pulse duration of ~1.8 ps. Our study provides a new and simple method to achieve two different vector soliton sources, which is attractive for potential applications requiring different pulse profiles.
据我们所知，我们首次在具有大正色散的纳米管锁模光纤环形激光器中产生了偏振锁定矢量耗散孤子和群速度锁定矢量传统孤子。根据基于光纤的Lyot滤波器的偏振相关消光比，通过简单地调整偏振控制器就可以切换这两种类型的矢量孤子。在滤波器消光比低的情况下，输出的矢量耗散孤子呈现出陡峭的光谱边缘和强烈的频率啁啾，其典型脉冲持续时间约为23.4 ps，并且可以进一步压缩至约0.9 ps。在滤波器消光比高的对比情况下，矢量传统孤子具有清晰的凯利边带，变换极限脉冲持续时间约为1.8 ps。我们的研究提供了一种实现两种不同矢量孤子源的新颖且简单的方法，这对于需要不同脉冲轮廓的潜在应用具有吸引力。
