EVALUATION OF DATA TRANSMISSION EFFICIENCY IN AN ATMOSPHERIC-OPTICAL COMMUNICATION LINE BASED ON SINGLE-MODE MULTIFREQUENCY LASER RADIATION WITH SYNCHRONIZATION OF LONGITUDINAL MODES

Abstract

The object of study of this paper is atmospheric-optical communication lines with the organization of data transmission based on single-mode multifrequency synchronized longitudinal laser radiation modes. The aim of this work is to present the results of evaluating the efficiency of data transmission in an atmospheric-optical communication line based on single-mode multifrequency synchronized longitudinal laser radiation modes by various indicators. An atmospheric-optical communication line is proposed, the main elements of which include separation of carrier frequencies from the spectrum of single-mode multi-frequency laser radiation with synchronization of longitudinal modes by means of a channel shaping device that allows the use of separate longitudinal modes; conversion of electrical information signals into a form suitable for modulation with carrier frequencies, followed by their modulation by amplitude, intensity, frequency, phase, or polarization; optical processing and transmission of the group combined optical signal through the communication line to the receiver, where it is focused, converted into an electrical information signal and further processed to extract data and transmitted to consumers. The obtained results of mathematical modeling make it possible to evaluate the capabilities of the laser radiation transmitter by various indicators and indicate that the proposed atmospheric-optical communication line with the organization of data transmission based on single-mode multifrequency with pulse synchronization.