We provide a perspective overview of the emerging field of nonlinear optics in multimode
optical fibers. These fibers enable new methods for the ultrafast light-activated control of …

Building on the scientific understanding and technological infrastructure of single-mode
fibers, multimode fibers are being explored as a means of adding new degrees of freedom to …

We develop a model for the description of nonlinear pulse propagation in multimode optical
fibers with a parabolic refractive index profile. It consists of a 1+ 1D generalized nonlinear …

We provide a systematic analysis of geometric parametric instabilities in nonlinear graded-
index multimode fibers. Our approach implicitly accounts for self-focusing effects and …

We experimentally and theoretically investigate the process of seeded intermodal four-wave
mixing in a graded-index multimode fiber, pumped in the normal dispersion regime. By …

We show that germanium-doped graded-index multimode silica fibers can exhibit relatively
high conversion efficiencies (∼ 6.5%) for second-harmonic generation when excited at …

We make use of two well-known numerical approaches of nonlinear pulse propagation,
namely, the unidirectional pulse propagation equation and the multimode generalized …

Geometric parametric instability is a class of processes where the revival of optical beam in
a nonlinear multimode graded-index fiber induces a spatial index modification and in turn …

We investigate the input and propagation characteristics and geometric parametric instability
of the partial Gaussian beam limited by the fiber face area in a graded-index multimode …

We show that geometric parametric instability (GPI) in graded-index multimode fibers is
strongly influenced by higher-order dispersion. By measuring the output spectrum for …