Enhanced coupled-nonlinear equations are introduced for full compensation of cross-phase modulation and partial compensation of four-wave mixing (FWM) via split-step digital backward propagation. Compared to full FWM compensation, the new backward propagation equations provide a significant reduction in the number of steps required in the split-step method. This increased step size together with more relaxed sampling requirements reduced the computational load by more than a factor of 20.
© 2009 Optical Society of America
High Speed Compontents and Optical Communications
Original Manuscript: January 29, 2009
Revised Manuscript: March 29, 2009
Manuscript Accepted: April 7, 2009
Published: April 28, 2009
Eduardo F. Mateo and Guifang Li, "Compensation of interchannel nonlinearities using enhanced coupled equations for digital backward propagation," Appl. Opt. 48, F6-F10 (2009)