As an indispensable complement to an integer vortex beam, the fractional vortex beam has
unique physical properties such as radially notched intensity distribution, complex phase …

It has been over 30 years since the concept of optical vortices was first proposed by Coullet
et al. in 1989, and the field of structured beams has grown extremely. In the last two …

A multipoint interferometer (MI), uniformly distributed point-like pinholes in a circle, was
proposed to measure the orbital angular momentum (OAM) of vortex beams [Phys. Rev. Lett …

Optical vortex beam with fractional orbital angular momentum (OAM) has great potential to
increase the capacity of optical communication and information processing in classical and …

An optical vortex carrying orbital angular momentum (OAM) with a fractional topological
charge (TC) is a good complement to a traditional integer optical vortex and has many …

An optical vortex beam carrying fractional topological charge (TC) has become an
immerging field of interest due to its unique intensity distribution and fractional phase front in …

Fractional vortex beams exhibit a higher degree of modulation dimensions than
conventional vortices, thus inheriting superior anti-turbulent transmission properties through …

Fractional vortex beam (FVB) possessing helical phase can be applied in the shift-keying
communication due to its fractional orbital angular momentum (FOAM) mode, which …

Optical vortex beams with fractional orbital angular momentum (OAM) can greatly enhance
the channel capacity in free-space optical communication. However, high precision …

Diffraction patterns of optical vortex beams (VBs) by differently shaped apertures are used to
determine their topological charge (TC). In this paper, we show by simulations and …