Herein, an attention-grabbing and up-to-date review related to major multiplexing
techniques is presented which includes wavelength division multiplexing (WDM) …

For many years, optics has been employed in computing, although the major focus has been
and remains to be on connecting parts of computers, for communications, or more …

We propose a new type of a wavefront aberration sensor, that is, a Zernike matched
multichannel diffractive optical filter, which performs consistent filtering of phase distributions …

Recently, intelligent data analysis and neural networks are increasingly used to detect the
wavefront by interferograms and digital holograms. In this case, there is significant freedom …

This paper examines the spectral properties of a spiral phase plate (SPP) generating orbital
angular momentum (OAM) beams. A simple method is proposed for calculating the resulting …

In this work, we carried out training and recognition of the types of aberrations
corresponding to single Zernike functions, based on the intensity pattern of the point spread …

An adaptive method for determining the type and magnitude of aberration in a wide range is
proposed on the basis of an optical processing of the analyzed wavefront using a …

The use of a multichannel wavefront sensor matched with phase Zernike functions to
determine the type and magnitude of aberration in the analyzed wavefront is investigated …

In this paper we consider the calculation of binary diffraction optical elements (DOEs) for the
formation and detection of optical vortices of arbitrary order. The synthesis of binary DOEs is …

It is known that the astigmatic transformation can be used to analyze the topological charge
of a vortex beam, which can be implemented by using various optical methods. In this case …