  Transitions between different kinds of soliton solutions of Ginzburg-Landau
equation (GLE) have been studied experimentally in a mode-locked fiber laser.
It is demonstrated that the different kinds of solitons corresponding to
different solutions of GLE can be generated in a single mode-locked laser.
Dispersion-managed solitons (DM), all-normal-dispersion solitons (ANDi) and
similaritons can be emitted respectively depending on the parameter of the
intensity of the light field and the birefringence effect. The three nonlinear
waves show different features especially the spectrum shapes and dynamics
accompanying with pump power scaling. Such phenomenon reveals the properties of
GLE, which is not only scientifically interesting but also valuable to
practical applications of mode-locked fiber lasers.
