Simultaneous demultiplexing and regeneration of 40-Gb/s optical time division multiplexed (OTDM) signal based on self-phase and cross-phase modulation in a dispersion shifted fiber is numerically and experimentally investigated. The optimal walkoff time between the control pulse and OTDM signal is obtained by numerical simulation. Our experiment also shows that it is an effective method for realizing simultaneous demultiplexing and regeneration when used in the middle of a system or in the receiver with a proper walkoff time.
Jianjun Yu and Palle Jeppesen, "Simultaneous All-Optical Demultiplexing and Regeneration Based on Self-Phase and Cross-Phase Modulation in a Dispersion Shifted Fiber," J. Lightwave Technol. 19, 941- (2001)