Optical soliton molecular complexes in a passively mode-locked fibre laser.,Nature Communications

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Optical soliton molecular complexes in a passively mode-locked fibre laser.
Nature Communications ( IF 14.7 ) Pub Date : 2019-02-19 , DOI: 10.1038/s41467-019-08755-4
Z Q Wang _{1,

2} , K Nithyanandan _{1,

3} , A Coillet ₁ , P Tchofo-Dinda ₁ , Ph Grelu ₁

Affiliation

Ultrashort optical pulses propagating in a dissipative nonlinear system can interact and bind stably, forming optical soliton molecules. Soliton molecules in ultrafast lasers are under intense research focus and present striking analogies with their matter molecules counterparts. The recent development of real-time spectral measurements allows probing the internal dynamics of an optical soliton molecule, mapping the dynamics of the pulses' relative separations and phases that constitute the relevant internal degrees of freedom of the molecule. The soliton-pair molecule, which consists of two strongly bound optical solitons, has been the most studied multi-soliton structure. We here demonstrate that two soliton-pair molecules can bind subsequently to form a stable molecular complex and highlight the important differences between the intra-molecular and inter-molecular bonds. The dynamics of the experimentally observed soliton molecular complexes are discussed with the help of fitting models and numerical simulations, showing the universality of these multi-soliton optical patterns.

中文翻译：

被动锁模光纤激光器中的孤子分子复合物。

在耗散非线性系统中传播的超短光脉冲可以稳定地相互作用和结合，形成光孤子分子。超快激光中的孤子分子受到了广泛的研究关注，并与它们的物质分子对应物形成了惊人的类比。实时光谱测量的最新发展允许探测光学孤子分子的内部动力学，绘制构成分子的相关内部自由度的脉冲的相对分离和相位的动力学。由两个强键合的光学孤子组成的孤子对分子，是研究最多的多孤子结构。我们在这里证明两个孤子对分子可以随后结合以形成稳定的分子复合物，并突出显示分子内和分子间键之间的重要差异。在拟合模型和数值模拟的帮助下讨论了实验观察到的孤子分子配合物的动力学，表明了这些多孤子光学图案的普遍性。

更新日期：2019-02-19

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