This work investigates the effect of phase fluctuation averaging on phase fluctuation induced by intrachannel four-wave mixing (IFWM) in highly dispersed differential phase-shift keying transmission systems. Through repeatedly averaging the phase fluctuations of adjacent pulses, a simple analytical model and numerical simulation revealed that the IFWM-induced differential phase fluctuation is suppressed and convergent, even after an ultralong transmission. The influence of averaging the phase fluctuations on the bit error rate is also evaluated by the semianalytical method.
© 2007 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: January 9, 2007
Revised Manuscript: February 11, 2007
Manuscript Accepted: February 12, 2007
Published: April 17, 2007
Chia Chien Wei and Jason (Jyehong) Chen, "Convergence of phase fluctuation induced by intrachannel four-wave mixing in differential phase-shift keying transmission systems via phase fluctuation averaging," Opt. Lett. 32, 1217-1219 (2007)