Modulational instability of continuous waves in transmission systems with semiconductor optical amplifiers and in-line filters was theoretically and experimentally analyzed. Stable and unstable domains were identified. Even in the normal-dispersion region, modulationally unstable domains can exist for an appropriate filter detuning.
© 2000 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4080) Fiber optics and optical communications : Modulation
(190.0190) Nonlinear optics : Nonlinear optics
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
M. Gölles, S. Darmanyan, F. Lederer, G. Onishchukov, A. Shipulin, Z. Bakonyi, and V. Lokhnygin, "Modulational instability in a transmission system with semiconductor optical amplifiers and in-line filters," Opt. Lett. 25, 293-295 (2000)