Soliton trains in photonic lattices.
Soliton trains in photonic lattices.
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DOI：
10.1364/opex.12.002831
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发表时间：
2004-06
期刊：
影响因子：
3.8
通讯作者：
Y. Kartashov;V. Vysloukh;L. Torner
中科院分区：
文献类型：
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作者：
Y. Kartashov;V. Vysloukh;L. Torner
我们研究了在可饱和克尔非线性介质中具有压痕谐和折射率横向调制的多点孤子包的形成和传输。我们发现，与不存在稳定的多峰孤子的均匀介质形成鲜明对比的是，光子晶格以孤子包或孤子串的形式支持稳定的高阶结构。直观地说，这种序列可以看作是由几个具有适当相对相位的最低阶孤子捆绑在一起组成的，它们作为稳定对象的存在提出了将多个孤子作为一个整体进行紧凑操纵的概念。
We address the formation and propagation of multi-spot soliton packets in saturable Kerr nonlinear media with an imprinted harmonic transverse modulation of the refractive index. We show that, in sharp contrast to homogeneous media where stable multi-peaked solitons do not exist, the photonic lattices support stable higher-order structures in the form of soliton packets, or soliton trains. Intuitively, such trains can be viewed as made of several lowest order solitons bound together with appropriate relative phases and their existence as stable objects puts forward the concept of compact manipulation of several solitons as a single entity.