Journal
OPTICS EXPRESS
Volume 22, Issue 24, Pages 29862-29867Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.22.029862
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Funding
- Zhejiang Provincial Natural Science Foundation of China [LY13F050006]
- NSFC [11375007, 1404289]
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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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