Fig. 3: Dispersion mitigation 1.
From: Spatiotemporal control of ultrafast pulses in multimode optical fibers
Measured iso-intensity of a a wavepacket composed of our three accessible spatial modes coupled together \(\left({{HG}}_{00},{{HG}}_{01},{{HG}}_{10}\right)\). c A field structure made up of our three spatial modes appropriately delayed to exit the fiber concurrently. e A single spatiotemporal entity comprised of spatial modes \({{HG}}_{00}\) and \({{HG}}_{01}\) allocated in different sections of the pulse spectrum. Color-coded modal decomposition maps where each ‘pixel’ depicts the complex (amplitude/phase) spatial distribution measured at a specific time and wavelength, displaying b three \({HG}\) mode elements delayed due to modal dispersion and positively chirped because of chromatic dispersion. d Our three \({HG}\) modes arriving simultaneously with positive chirp. f A pulse structure featuring two different topological charges, with vorticity value \({\ell}{=}0\) in the longer wavelengths and \({\ell}{=}{{{\mathscr{+}}}}1\) in the shorter wavelengths. In the insets, we present the spatial intensity structure of the wavepackets.
