Spatial beam self-cleaning in multimode lanthanum aluminum silicate glass fiber

Abstract

We demonstrated that spatial Kerr beam self-cleaning can be obtained in a highly multimode multicomponent optical fiber based on lanthanum aluminum silicate oxide glasses (SiO2-Al2O3-La2O3), which was made by using the modified powder in tube technology (MIPT). We show how such fabrication method can provide interesting potentialities to design doped multimode optical fibers with homogeneous and quasi-parabolic refractive-index core profile for nonlinear optics applications.

Spatial Beam Evolution in Nonlinear Multimode Fibers

“…New perspectives in the topical area of nonlinear multimode fibers are certainly stimulated by material science [7], and novel fiber lasers. The availability of active multimode fibers is one of the key points develop new powerful lasers, in particular spatiotemporal mode locking and self-similar multimode lasers, to cite only a few recent advances [8,9].…”