Intermodal modulational instability in graded-index multimode optical fibers
- Dupiol, Richard
- Bendahmane, A.
- Krupa, Katarzyna
- Fatome, J.
- Tonello, Alessandro
- Marc, Fabert
- Couderc, Vincent
- Wabnitz, S.
- Millot, Guy
DOIAbstract
International audienceWe report on the experimental observation of an intermodal noise-seeded modulational instability process (MI) taking place in the normal dispersion regime of a few-mode graded-index optical fiber. Strong power dependence of the MI spectra is observed, with a peak gain modulation frequency that scales as the square root of the injected light power. These observations are in excellent agreement with the predictions of a bimodal-MI model
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