We address the problem of soliton phase jitter caused by fiber amplifier noise in a communication channel. An analytical expression for phase jitter is derived by use of perturbation theory. In the absence of filters the variance of the phase is found to be proportional to the cube of the propagation distance, but it increases only linearly if in-line filters are used. We verify with simulations that in-line filters maintain the phase jitter at a level that is tolerable for transoceanic links.
© 1999 Optical Society of America
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.4510) Fiber optics and optical communications : Optical communications
(060.5060) Fiber optics and optical communications : Phase modulation
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
Marc Hanna, Henri Porte, *Jean-Pierre Goedgebuer, and *William T. Rhodes, "Soliton optical phase control by use of in-line filters," Opt. Lett. 24, 732-734 (1999)