Simulation of Pulse Propagation in a Bire-Fringent Medium using Adaptive Step Size Method

Nowadays mostly single mode fibers are in use. Even a single mode fiber comprises of two modes, an input pulse is splitted along fast axis (x-axis) and slow axis (y-axis). The splitting of single pulse into two pulses and being propagated at suitable intensities inside a single mode fiber makes it undergo various non-linear phenomena. Proper management of the above mentioned non-linear phenomenon can make them useful for the communication systems. One very important phenomenon is utilization of Kerr effect into a fast saturable absorber action. The fast saturable absorber action can be utilized to formulate a self starting passively mode locked ring fiber laser. Study of pulse propagation in birefringent medium has been carried out using adaptive step size method Adaptive step size method is proven for efficient and accurate results.