Abstract
In this paper, we present exact femtosecond one- and two-dark soliton solutions for a variable-coefficient higher-order nonlinear Schrödinger equation via modified Hirota method. The propagation and interaction of femtosecond dark solitons are investigated in inhomogeneous fiber systems. Elastic collision, bound oscillation and parallel propagation can be achieved in both Gaussian distributed parameter system and exponentially periodic distributed parameter system by choosing the appropriate distributed parameters and soliton parameters. The results may be beneficial to the realization of interaction control of femtosecond dark solitons in communication systems.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (NSFC) (Grant Numbers 61775126, 61771295); Natural Science Foundation of Shanxi Province (Grant Number 2016011038); Shanxi “1331 Project” Key Subjects Construction (1331KSC).
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Gao, J., Yang, R., Tian, J. et al. Control of interaction between femtosecond dark solitons in inhomogeneous optical fibers. Opt Quant Electron 50, 286 (2018). https://doi.org/10.1007/s11082-018-1537-6
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DOI: https://doi.org/10.1007/s11082-018-1537-6