Experimental Observation of Transitions of Different Pulse Solutions of Ginzburg-Landau Equation in a Mode-Locked Fiber Laser

TL;DR

This paper experimentally demonstrates the generation and transition of various soliton solutions of the Ginzburg-Landau equation within a single mode-locked fiber laser, highlighting their spectral and dynamic differences.

Contribution

It is the first experimental observation of multiple GLE soliton solutions and their transitions in a mode-locked fiber laser system.

Findings

Different soliton types can be generated in a single laser.

Spectral shapes and dynamics vary with pump power and birefringence.

Transitions between soliton solutions are experimentally observed.

Abstract

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.