METHOD OF FORMATION OF COHERENT OPTICAL SIGNAL BY SUMMATION OF RADIATION BEAMS OF N LASERS IN VERTEX OF CONICAL SURFACE AND TRANSMITTER OF COHERENT OPTICAL RADIATION REALIZING THIS METHOD Russian patent published in 1998 - IPC

FIELD: radio engineering, formation of beams of coherent radiation with high density of power. SUBSTANCE: for obtainment of coherent summation of radiation beams of lasers frequencies of summed beams are leveled by heterodyning of parts of oscillations of each laser and of oscillations of reference laser, by isolation of difference frequencies from obtained spectrum of oscillations, by determination of values of these frequencies, by synthesizing N signals of acoustooptical modulation with obtained codes of difference frequencies, by modulation of elastic optically transparent media with these signals, by Bragg diffraction of laser oscillations illuminating these media and by Doppler shift of frequencies of oscillations of lasers to frequency of oscillations of reference laser. Phases of summed beams modulated acoustooptically are leveled by phase modulation of oscillations of each of N lasers with signal which number of steps amounts to $$$, by phase modulation of each of synthesized oscillations with signal which number of steps amounts to $$$, by heterodyning of parts of acoustooptically modulated oscillations of each of summed beams and parts of oscillations of same reference laser, by extraction of oscillations of signals of frequency $$$ from obtained spectrum, by phase detection of each of extracted signals of frequency $$$ with reference signal of same frequency and by addition of value $$$ to phase of each of synthesized oscillations. EFFECT: enhanced reliability of coherent summation of radiation beams. 10 cl, 27 dwg