We obtain a closed-form expression of modulational-instability gain in an optical fiber with arbitrary loss/gain and group-velocity dispersions. It reveals that instability is induced by the loss dispersion even in the normal group-velocity dispersion regime.
© 2004 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(190.0190) Nonlinear optics : Nonlinear optics
(190.3100) Nonlinear optics : Instabilities and chaos
T. Tanemura, Y. Ozeki, and K. Kikuchi, "Modulational instability induced by loss dispersion in optical fiber," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper CTuS5.
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