Approximating fast absorber behavior in active fibers as duffing oscillator mode

الملخص EN

In this paper, a fast saturable absorber, with law saturation of about 20 %, distributed uniformly in the active fiber core is considered.

A new approach has been introduced to solve the propagation of CW mode-locking waves.

In this approach the three-con pled nonlinear differential equal ions that describe the field inside the active fibers with distributed saturable absorber arc transformed into a single nonlinear differential equation.

This equation has a Dulling oscillator form.

By this approach, the design procedure will be simplified and a new field of research will be opened.

Since die Huffing oscillator exhibits periodic, chaos, and periodic and chaos output.