Josephson oscillations of edge quasi-solitons in a photonic-topological coupler

被引：4

作者：

Bazhan, Nataliia ^{[1
]}

Malomed, Boris ^{[2
,3
,4
]}

Yakimenko, Alexander ^{[1
]}

机构：

[1] Taras Shevchenko Natl Univ Kyiv, Dept Phys, 64-13 Volodymyrska St, UA-01601 Kiev, Ukraine

[2] Tel Aviv Univ, Fac Engn, Dept Phys Elect, IL-69978 Tel Aviv, Israel

[3] Tel Aviv Univ, Ctr Light Matter Interact, IL-69978 Tel Aviv, Israel

[4] Univ Tarapaca, Inst Alta Invest, Casilla 7D, Arica, Chile

来源：

OPTICS LETTERS | 2021年 / 46卷 / 24期

基金：

新加坡国家研究基金会; 以色列科学基金会;

关键词：

LASER;

D O I：

10.1364/OL.445298

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduce a scheme of a photonic coupler built of two parallel topological-insulator slab waveguides with the intrinsic Kerr nonlinearity, separated by a lattice spacing. Josephson oscillations (JOs) of a single edge quasi-soliton (QS) created in one slab, and of a pair of QSs created in two slabs, are considered. The single QS jumping between the slabs is subject to quick radiative decay. However, the JOs of the co-propagating QS pair may be essentially more robust, as one QS absorbs dispersive waves emitted by the other. The most robust JO regime is featured by the pair of QSs with phase shift ,r between them. (C) 2021 Optica Publishing Group

引用

页码：6067 / 6070

页数：4