As depicted in the image, three kinds of soliton pulses propagate along the laser beam, representing the discovery of some new types of solitons in fiber lasers. The theoretical model describes a soliton propagation in fiber lasers. The cubic‐quintic complex Ginzburg‐Landau equations (CGLE) are studied to gain four families of analytic soliton solutions via the modified Hirota method.
This paper focusses on the influences of non‐linearity and the spectral filtering effect on those obtained analytic soliton solutions. Furthermore, methods to amplify the amplitude and compress the width of soliton pulses are put forward. In addition, numerical simulations are carried out to validate some of the analytic results, and the transformation from the variable coefficient cubic‐quintic CGLE to the constant one is proposed.
The obtained results are expected to contribute to the soliton control in fiber lasers, and promote the research, both theoretically and experimentally, of new phenomena of soliton pulses in fiber lasers.