Controllable propagation paths of gap solitons

Author:

Wang Qing1ORCID,Mihalache Dumitru2,Belić Milivoj R.3,Zhang Lingling1,Ke Lin1,Zeng Liangwei4ORCID

Affiliation:

1. Jiujiang University

2. Horia Hulubei National Institute of Physics and Nuclear Engineering

3. Texas A&M University at Qatar

4. Shenzhen University

Abstract

This paper numerically investigates the evolution of solitons in an optical lattice with gradual longitudinal manipulation. We find that the stationary solutions (with added noise to the amplitude) keep their width, profile, and intensity very well, although the propagation path is continuously changing during the modulated propagation. Discontinuities in the modulation functions cause the scattering of the beam that may end the stable propagation. Our results reveal a method to control the trajectory of solitons by designed variation of the optical lattice waveguides. Interesting examples presented include the snakelike and spiraling solitons that both can be adaptively induced in sinusoidally and helically shaped optical lattices. The controlled propagation paths provide an excellent opportunity for various applications, including optical switches and signal transmission, among others.

Funder

Qatar National Research Fund

Doctoral Research Start-up Foundation of Jiujiang University

National Natural Science Foundation of China

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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