The Study Of Controlling Ultrashort Pulse's Trans-mission In NLDC

Today the communication is progressing toward high speed or superhigh speed and large capacity, because the optical network has those characteristics, then it is the focus in communication field. Correspondingly, routing, switching and controlling have all been developing. Nonlinear Directional Coupler (NLDC) is a switch used in optical network. W.S.Man had studied transmission controlling with ground state soliton through NLDC, it is obviously not available to used in superhigh speed network; and Mary J.Potasek had studied the self-coupling with ultrashort solitons in NLDC, self-coupling is difficult to control the signal transmitting. I has studied the transmission controlling with ultrashort solitons(<100fs) in NLDC, similarly I use a controlling pulse to control the signal pulse, it is the intensity of controlling pulse to decide the signal change its direction or not. And I had made simulation with MATLAB. The next part of my paper, I analyzed elements which affecting the signal in superhigh optical networks, and simulated the loss-managed network.