With the ever-increasing demand for data and the radio frequency spectrum becoming
congested, free space optics (FSO) may find a niche for situations where fiber is too …

The dimension of the state space for information encoding offered by the transverse
structure of light is usually limited by the finite size of apertures. The widely used orbital …

As is well known, angular position and orbital angular momentum (OAM) of photons are a
conjugate pair of variables that have been extensively explored for quantum information …

A single-end adaptive-optics (AO) module is experimentally demonstrated to mitigate the
emulated atmospheric turbulence effects in a bi-directional quantum communication link …

We show that a product of two Laguerre–Gaussian (pLG) beams can be expressed as a
finite superposition of conventional LG beams with particular coefficients. Based on such an …

In this paper, we explore the use of an optical correlation technique to decompose different
radial as well as azimuthal order modes of Laguerre Gaussian (LG) beams. We …

Structured light arrays of various shapes have been a cornerstone in optical science, driven
by the complexities of precise and adaptable generation. This study introduces an approach …

It is shown that a squared Laguerre-Gaussian (LG) vortex beam is Fourier-invariant and
retains its structure at the focus of a spherical lens. In the Fresnel diffraction zone, such a …

In this paper, we present new type of optical vortex called the squared Laguerre-Gaussian
(LG) 2 vortex beam. It is theoretically, numerically, and experimentally proved that these …

The study of orbital angular momentum (OAM) calculation and measurement of complex
radial structure beams with limited receiving aperture size is of practical significance. In this …