Development of an automatic system for adjusting the position of the laser radiation axis for an air communication channel

The necessity of developing optical systems for adjusting the position of the laser radiation axis on a photodetector module for an aerial fiber-optic communication line is substantiated. The design of an optical system for adjusting the axis of laser radiation on a photodetector module in a plane perpendicular to the laser radiation has been developed. The operation of an optical system for controlling the position of the laser radiation axis on the photosensitive layer of the photodetector is simulated. The optimal parameters of the system components are determined and control methods are proposed that allow achieving the necessary accuracy and stability of the radiation direction. Experimental studies aimed at correcting the position of the plates relative to the direction of the axis of laser radiation and changing their refractive index by changing the voltage are presented. The efficiency of the developed optical system is confirmed and the optimal parameters of its optical elements are determined.