| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Multipeaked Solitons in Parity-Time Complex Superlattice with Dual Periods |
| WANG Hong-Cheng1, LING Dong-Xiong1**, HE Ying-Ji2 |
1College of Electronic Engineering, Dongguan University of Technology, Dongguan 523808
2School of Electronics and Information, Guangdong Polytechnic Normal University, Guangzhou 510665
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| Cite this article: |
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WANG Hong-Cheng, LING Dong-Xiong, HE Ying-Ji 2015 Chin. Phys. Lett. 32 074203 |
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Abstract The existence and stability of multipeaked solitons are investigated in a parity-time symmetric superlattice with dual periods under both self-focusing and self-defocusing nonlinearity. For self-defocusing nonlinearity, dipole solitons with low power and all the odd-peak solitons can exist stably in the first gap, while dipole solitons with high power and even-peak (except two) solitons are unstable. For self-focusing nonlinearity, even-peak out-of-phase solitons can propagate stably in the infinite gap, while odd-peak in-phase solitons are unstable.
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Received: 24 February 2015
Published: 30 July 2015
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| PACS: |
42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.65.Jx
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(Beam trapping, self-focusing and defocusing; self-phase modulation)
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42.65.Wi
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(Nonlinear waveguides)
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