Stabilization of spatiotemporal solitons in Kerr media by dispersive coupling.
Stabilization of spatiotemporal solitons in Kerr media by dispersive coupling.
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DOI：
10.1364/ol.40.001045
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发表时间：
2015-02
期刊：
影响因子：
3.6
通讯作者：
Y. Kartashov;B. Malomed;V. Konotop;V. Lobanov;L. Torner
中科院分区：
文献类型：
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作者：
Y. Kartashov;B. Malomed;V. Konotop;V. Lobanov;L. Torner
我们引入了一种稳定克尔非线性介质中时空孤子的机制，该机制基于形成孤子态的场分量之间的线性耦合的色散。具体来说，我们考虑具有核间耦合色散（CD）的双核引导结构中的孤子。我们证明 CD 深刻影响孤子的性质，导致克尔介质中高度不稳定的时空孤子完全稳定，并具有聚焦非线性。我们还发现 CD 的存在刺激了束缚态的形成，然而，束缚态是不稳定的。
We introduce a mechanism to stabilize spatiotemporal solitons in Kerr nonlinear media, based on the dispersion of linear coupling between the field components forming the soliton states. Specifically, we consider solitons in a two-core guiding structure with inter-core coupling dispersion (CD). We show that CD profoundly affects properties of the solitons, causing the complete stabilization of the otherwise highly unstable spatiotemporal solitons in Kerr media with focusing nonlinearity. We also find that the presence of CD stimulates the formation of bound states, which, however, are unstable.