Zhang Huaiwei, Peng Jiying, Xiao Xiaosheng, Zhang Wenyu, Xu Guoyu, Su Xinyang, Yan Fengping, Zheng Yi, Yao Jianquan
Opt Express. 2025 Feb 10;33(3):4225-4235. doi: 10.1364/OE.546839.
The study of high-dimensional solitons will bring great interest and new opportunities for understanding three-dimensional nonlinear physical phenomena and the design of complex nonlinear systems. The development of spatiotemporal mode-locked (STML) lasers has enabled the exploration of high-dimensional soliton dynamics. In this study, an STML laser and a dual-channel real-time measurement system based on dispersion Fourier transform technology were constructed. The real-time spectral evolution of high-dimensional solitons, including dissipative solitons, creeping solitons, and soliton explosions, are observed and studied. The experimental results show the complexity of multimode soliton dynamics. Such as multimode solitons possess the spectral-spatial characteristics that are absent in single-mode solitons, the transformations between steady-state solitons, creeping solitons, and soliton explosions, and the relationship between these transformations and pump energy changes and spatiotemporal saturated absorbers. To the best of our knowledge, this is also the first experimental report on multimode creeping solitons. This work provides insight into understanding complex spatiotemporal soliton dynamics and enriches the exploration of, to our knowledge, novel spatiotemporal dynamics.
对高维孤子的研究将为理解三维非线性物理现象以及复杂非线性系统的设计带来极大的兴趣和新的机遇。时空锁模（STML）激光器的发展使得对高维孤子动力学的探索成为可能。在本研究中，构建了一台STML激光器和一个基于色散傅里叶变换技术的双通道实时测量系统。对包括耗散孤子、蠕动孤子和孤子爆炸在内的高维孤子的实时光谱演化进行了观测和研究。实验结果表明了多模孤子动力学的复杂性。例如，多模孤子具有单模孤子所没有的光谱-空间特性、稳态孤子、蠕动孤子和孤子爆炸之间的转变，以及这些转变与泵浦能量变化和时空饱和吸收体之间的关系。据我们所知，这也是关于多模蠕动孤子的第一份实验报告。这项工作为理解复杂的时空孤子动力学提供了见解，并丰富了我们对新型时空动力学的探索。
