METHOD OF RETUNING OF MULTIFREQUENCY LASER Russian patent published in 1995 - IPC

FIELD: quantum electronics. SUBSTANCE: multifrequency laser includes active element resonator with diffraction grid and acousto-optical deflector. N audio waves are excited in the latter. Power of first audio waves exceeds that of others by 15-20% Generation in such laser is carried out at wave lengths λ_j= a(sinθ_j+sinθ₁)/m,, where a is period of diffraction grid; θ₁ is angle of incidence on to diffraction grid of light wave deflected by first acoustic wave; θ_j by j-th acoustic wave, where j=1,2.N. By change of power of acoustic waves one can change amplitudes of spherical components generated by laser. EFFECT: realization of independent returning of N spectral components in the absence of N(N-1)/2 components not controlled independently and with maintenance of narrow line of laser generation. 3 cl, 1 dwg