Pulse compression based on nonlinear interaction

A novel technique is proposed for pulse compression by utilizing the nonlinear interaction between two neighboring pulses in optical fiber. By using the method of split-step Fourier (SSF), we numerically investigate the propagation of the pulse pair in optical fiber. Usually, two pulses attract each other and collide into one compression pulse periodically along the fiber. So with an appropriate choice of the fiber length-the collision length, such a fiber can act as compressor, so-called nonlinear action compressor. And then, the effects of parameters on the compression pulse have also been investigated numerically with SSF and we find the quality factor Qc>1.