Modulation instabilities caused by self-phase modulation occur in normally dispersive waveguides, provided that the power, dispersion or nonlinearity varies along propagation. Propagation through two different segments with positive dispersion is shown to be unstable.
© 2004 Optical Society of America
B. Burgoyne, N. Godbout, and S. Lacroix, "Self-phase modulation instability in normal dispersion regime," in Nonlinear Guided Waves and Their Applications, Technical Digest on CD (Optical Society of America, 2004), paper MC18.
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