Power scaling of normal-dispersion continuum generation: Merging fiber and light structuring

The use of higher-order modes (HOMs) is emerging as a new route to scale the core size, and thereby operational power levels for nonlinear processes, while retaining desired dispersion properties. The peculiar guidance properties of microstructured optical fibers (MOFs) imply distinct advantages for HOM-based devices in terms of limiting mode competition, and extending the useful spectral guidance window. This contribution shows how combined tailoring of MOF structures and field profiles can lead to order-of-magnitude gains in the power levels of all-normal supercontinuum generation.