FEASIBLE CONDITIONS FOR MAGNETOSTATIC WAVE SOLITONS

Feasible conditions for magnetostatic wave envelope (MSWE) soliton for mation and propagation have been discussed by quantitatively investiga ting the decay features of MSWE solitons. A normalized model equation has been derived from the nonlinear Schrodinger equation to analyze th e decay features of MSWE solitons in derail. With the normalized model equation, a numerical study on the amplitude decay characteristics of MSWE solitons and the broadening properties of their full-width at ha lf maximum (FWHM) has been performed. The amplitude decay rate of MSWE wave packets has been found to be dependent on the input power level, so is the broadening rare of their FWHM, and it should be emphasized that the increase of input power has further been proved to have an ef fect on the damping of MSWE solitons which is equivalent to the decrea se of loss.