Electrostriction-induced cross-phase modulation between subsequent bits of a nonreturn-to-zero pulse train in optical fibers leads to nonlinear frequency shifts of opposite sign for the 1's and the 0's. Direct experimental measurements of the electrostrictive and Kerr-induced nonlinear phase shift across the bit profiles agree well with the theoretical modeling.
© 1998 Optical Society of America
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.4510) Fiber optics and optical communications : Optical communications
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(190.3270) Nonlinear optics : Kerr effect
Andrea Fellegara and Stefan Wabnitz, "Electrostrictive cross-phase modulation of periodic pulse trains in optical fibers," Opt. Lett. 23, 1357-1359 (1998)