6533b7dafe1ef96bd126eb61

RESEARCH PRODUCT

Observation of modulational instability induced by velocity-matched cross-phase modulation in a normally dispersive bimodal fiber

Guy MillotP. Tchofo DindaMarc HaeltermanStéphane Pitois

subject

PhysicsOptical fiberWave propagationbusiness.industryCross-phase modulationIsotropyAtomic and Molecular Physics and Opticslaw.inventionModulational instabilityWavelengthsymbols.namesakeOpticslawsymbolsDispersion (water waves)businessRaman scattering

description

We demonstrate experimentally the existence of cross-phase-modulation-induced modulational instability in the absence of group-velocity mismatch between the interacting nonlinear dispersive waves. The experiment is performed by means of a normally dispersive isotropic bimodal fiber. The group-velocity mismatch between the fundamental and the first-order modes that constitute the two interacting waves is controlled by wavelength tuning. A strong power dependence of the modulational instability spectra is observed near the condition of group-velocity matching.

https://doi.org/10.1364/ol.22.001686