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- Title
Optical soliton resonances and soliton molecules for the Lakshmanan–Porsezian–Daniel system in nonlinear optics.
- Authors
Li, Bang-Qing; Ma, Yu-Lan
- Abstract
Soliton resonances and soliton molecules play a vital role to generate stable high-energy waves in nonlinear system. Meanwhile, higher-order dispersions and higher-order nonlinearity effects are often introduced in optical models because new optical propagation media have constantly been developed. This article's motivation is to explore the optical soliton resonances and soliton molecules for the Lakshmanan–Porsezian–Daniel system governed by a four-order nonlinear Schrödinger equation arising in nonlinear optics. Via applying the Darboux transformation method, we obtained the system's analytical multi-soliton solutions. Then, through managing the spectrum parameters and initial phase parameters, novel soliton resonances and soliton molecules are discovered for the first time to the system. Our study reveals a few of significant properties of the soliton resonances and soliton molecules for the system: (i) The formation mechanism from local soliton resonances to soliton molecules is discovered. The soliton molecules can be established as a limit of local soliton resonances; (ii) the system energy carried by the soliton will obviously increase as local soliton resonances and soliton molecules occur; (iii) the spatiotemporal patterns of soliton molecules will be becoming more complex as the order of soliton solutions increases; (iv) the wave density of soliton molecules will grow with the increase in the weight coefficient of higher-order dispersion and higher-order nonlinearity. These new results indicate that the Lakshmanan–Porsezian–Daniel system may not only generate higher-energy solitons, but also carry richer optical information.
- Subjects
OPTICAL resonance; NONLINEAR optics; NONLINEAR Schrodinger equation; MODULATIONAL instability; NONLINEAR systems; DARBOUX transformations
- Publication
Nonlinear Dynamics, 2023, Vol 111, Issue 7, p6689
- ISSN
0924-090X
- Publication type
Article
- DOI
10.1007/s11071-022-08195-8