Abstract

By analysis of the degree of cross-polarization of a stochastic electromagnetic vortex beam, we find that the number of bright ring dislocations is equal to the topological charge of the vortex beam. Based on this property, we suggest a method to access the measurement of the orbital angular momentum of vector vortex beams, which holds true for cases of high coherence or low coherence.

© 2014 Optical Society of America

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