Dispersive optical soliton solutions for the hyperbolic and cubic-quintic nonlinear Schrodinger equations via the extended sinh-Gordon equation expansion method

摘要

The (2 + 1)-dimen sional hyperbolic and cubic-quintic nonlinear Schrodinger equations describe the propagation of ultra-short pulses in optical fibers of nonlinear media. By using an extended sinh-Gordon equation expansion method, some new complex hyperbolic and trigonometric functions prototype solutions for two nonlinear Schrodinger equations were derived. The acquired new complex hyperbolic and trigonometric solutions are expressed by dark, bright, combined dark-bright, singular and combined singular solitons. The obtained results are more compatible than those of other applied methods. The extended sinh-Gordon equation expansion method is a more powerful and robust mathematical tool for generating new optical solitary wave solutions for many other nonlinear evolution equations arising in the propagation of optical pulses.