Dispersion-Managed Optical Solitons with Higher-Order Nonlinearity

In this paper we have investigated the propagation characteristics of optical solitons in dispersion managed optical communication systems taking into account of the effect of quintic nonlinearity. Using variational formalism, several ordinary differential equations have been established for pulse parameters. These equations have been solved numerically to investigate the propagation characteristics. It has been noticed that stable periodic pulse propagation is possible over long distance. Numerical simulation has been undertaken to show that parabolic nonlinearity reduces collision distance between neighbouring pulses of the same channel.

Keywords:

• dispersion-managed soliton
• quintic nonlinearity
• optical fiber
• variational method
• split-step Fourier method

Acknowledgement

We thank an anonymous referee for valuable suggestions. This work is supported by the Department of Science and Technology (DST), government of India through the R&D grant SP/S2/L-21/99. The authors, Manoj Mishra and S. Jana, would like to thank DST for providing a junior research fellowship.