Controllable Akhmediev breather and Kuznetsov-Ma soliton trains in PT-symmetric coupled waveguides

被引：80
作者：
Dai, Chaoqing [1 ,2 ]
Wang, Yueyue [1 ,2 ]
Zhang, Xiaofei [3 ]
机构：
[1] Zhejiang A&F Univ, Sch Sci, Linan 31130, Zhejiang, Peoples R China
[2] Zhejiang A&F Univ, Zhejiang Prov Key Lab Chem Utilizat Forestry Biom, Linan 31130, Zhejiang, Peoples R China
[3] Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Shaanxi, Peoples R China
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 24期
关键词：
D O I：
10.1364/OE.22.029862
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The PT-symmetric and PT -antisymmetric Akhmediev breather (AB) and Kuznetsov-Ma (KM) soliton train solutions of a (2+1)dimensional variable-coefficient coupled nonlinear Schrodinger equation in PT -symmetric coupled waveguides with gain and loss are derived via the Darboux transformation method. From these analytical solutions, we investigate the controllable behaviors of AB and KM soliton trains in a diffraction decreasing system with exponential profile. By adjusting the relation between the maximum Z(m) of effective propagation distance and the peak locations Z(i) of AB and KM soliton trains, we can control the restraint, maintenance and postpone excitations of AB and KM soliton trains. (C) 2014 Optical Society of America
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收藏
页码：29862 / 29867
页数：6
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