期刊
OPTICS COMMUNICATIONS
卷 285, 期 3, 页码 364-367出版社
ELSEVIER
DOI: 10.1016/j.optcom.2011.09.043
关键词
HNLS equation; Non-Kerr nonlinearities; DITB or Dipole solution; Parametric stability; Ultra short optical communication
类别
资金
- Department of Science and Technology (DST)
- Department of Atomic Energy - Board of Research in Nuclear Sciences (DAE-BRNS)
- University Grants Commission (UGC)
- Government of India
- DST, Government of India [SR/S2/LOP-12/2009]
We present new type of Dark-in-the-Bright solution also called dipole soliton for the higher order nonlinear Schrodinger (HNLS) equation with non-Kerr nonlinearity under some parametric conditions and subject to constraint relation among the parameters in optical context. This equation could be a model equation of pulse propagation beyond ultrashort range in optical communication systems. The solitary wave solution is composed of the product of bright and dark solitary waves. This type of pulse shape to be formed both the group velocity dispersion and third-order dispersion must be compensated. We also investigated the stability of the solitary wave solution under some initial perturbation on the parametric conditions. We have shown that the shape of pulse remains unchanged up to 20 normalized lengths even under some very small violation in parametric conditions. (C) 2011 Elsevier B.V. All rights reserved.
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