Fig. 1. (a) Poincare sphere; (b) elliptically polarized states of point P

Fig. 2. High-order Poincare sphere. (a) m=+1; (b) m=-1

Fig. 3. Experimental setup for generating vector vortex beam

Fig. 4. (a) Schematic of half wave plate; (b) light path of amplitude modulation

Fig. 5. Experimental results of cylindrical vector beams on the equator

Fig. 6. Comparison between Stokes coefficients and the theoretical data. (a) m=+1; (b) m=-1