In case you are interested on how you can shape a light pulse to have all possible polarization states across is spatial beam profile and frequency spectrum, you should have a look at our recent paper on Spatiospectral Poincaré Beams here. You will also see how these beams can be described by a higher-order Poincaré sphere and how this relates to the fundamental sphere.
Congrats to all co-authors, in particular to Robert and Marco for having worked successfully in the lab again : D