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RESEARCH PRODUCT
Critical behavior with dramatic enhancement of modulational instability gain in fiber systems with periodic variation dispersion
C. M. NgabirengA. LabruyèreB. KalithasanP. Tchofo DindaK. PorsezianS. Ambomosubject
PhysicsOptical fiberWave propagationbusiness.industrySingle-mode optical fiberStatistical and Nonlinear Physics01 natural sciencesAtomic and Molecular Physics and Opticslaw.invention010309 optics[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistryModulational instabilityFour-wave mixing[CHIM.THEO] Chemical Sciences/Theoretical and/or physical chemistryOpticslawQuantum electrodynamics0103 physical sciencesDispersion (optics)190.4380 060.2310 290.5860[ CHIM.THEO ] Chemical Sciences/Theoretical and/or physical chemistry010306 general physicsSelf-phase modulationbusinessPhotonic-crystal fiberdescription
International audience; We analyze modulational instability (MI) of light waves in fiber systems with periodically varying dispersion. The dispersion fluctuation generates special waves, called nonconventional MI sidebands, which are shown to be highly sensitive to two fundamental system parameters. The first one is the average dispersion of the system. Surprisingly, the second parameter turns out to be the mean value of the dispersion coefficients of the two types of fibers of the system, which is then called “central dispersion.” These two parameters are used to control and optimize the MI process. In particular, we establish the existence of a critical region of the central dispersion at which the power gain of the nonconventional sidebands undergoes a dramatic enhancement.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-03-01 |