Hu X, Guo J, Zhao L M, Ma J, Tang D Y
Opt Lett. 2021 Mar 1;46(5):1105-1108. doi: 10.1364/OL.420012.
We report, to the best of our knowledge, the first experimental observation of coexistence of scalar dark and bright solitons in a fiber laser operating in the near zero-dispersion regime. We show that because of the incoherent cross coupling, under suitable conditions a bright soliton formed in the net anomalous cavity dispersion regime could bind with a dark soliton formed in the net normal cavity dispersion regime in a fiber laser. The properties of the dark and bright solitons, as well as their bound states, are experimentally investigated. The numerical simulations based on the coupled Ginzburg-Landau equations have reproduced the experimental results well.
据我们所知，我们首次实验观测到了在近零色散区工作的光纤激光器中，标量暗孤子和亮孤子的共存现象。我们表明，由于非相干交叉耦合，在合适的条件下，在光纤激光器中，净反常腔色散区形成的亮孤子可以与净正常腔色散区形成的暗孤子相结合。对暗孤子和亮孤子及其束缚态的特性进行了实验研究。基于耦合金兹堡 - 朗道方程的数值模拟很好地再现了实验结果。
