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Journal Radioengineering №4 for 2023 г.
Article in number:
Axisymmetric beams of light and their application for space technology
Type of article: scientific article
DOI: https://doi.org/10.18127/j00338486-202304-08
UDC: 535-4, 629.783
Keywords: Polarization-symmetric structures radially-polarization beam azimuthally-polarization beam beam with spatial polarization modulation polarization protocol
Authors:

A.L. Sokolov1

1 JSC “Precision Systems and Instruments” (Moscow, Russia)

Abstract:

Formulation of the problem. The orientation of the plane of polarization of the laser beam leaving the rangefinder pointing system or laser communication depends on the direction of the beam in the topocentric coordinate system.

This complicates the operation of the receiver, since the local coordinate system must be consistent with the plane of polarization.

Target. Consider the possibility of using in space communication systems laser beams with an axisymmetric polarization structure, which are invariant to rotation relative to the optical axis of the laser beam.

Results. It is shown that axisymmetric beams can be used both in space systems with spatial polarization modulation and as basic beams that form a polarization cryptographic key for transmitting secure information over long distances.

Practical significance. Modification of the well-known polarization protocol BB94 using axisymmetric beams greatly simplifies its application in space communication systems with information protection, since it does not require fixing the orientation of the polarization plane for different directions of the laser beam.

Pages: 64-72
For citation

Sokolov A.L. Axisymmetric beams of light and their application for space technology. Radiotekhnika. 2023. V. 87. № 4. P. 64−72. DOI: https://doi.org/10.18127/j00338486-202304-08 (In Russian)

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Date of receipt: 03.03.2023
Approved after review: 10.03.2023
Accepted for publication: 27.03.2023