Article ID Journal Published Year Pages File Type
5495963 Annals of Physics 2017 15 Pages PDF
Abstract
The existence and stability of fundamental, dipole and tripole solitons are investigated in parity-time symmetric potential with competing gain and loss. The competing parameter decides both the width of potential and loss or gain region. All these solitons exist in the potential with a suitable width. It is easy to form a fundamental soliton when increasing the parameter k. To form a dipole and a tripole soliton, the values of k should locate in some region. The multimode solitons are unstable for a larger power while may be stable for a relatively small one. The effects of competing gain or loss profile on the stability of these solitons are investigated with a linear stability analysis corroborated by a beam propagation method.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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