Patent ID: 8767289

Claim:
Laser device comprising a number of fiber amplifiers delivering a number of optical waves, which are supplied by an oscillator that delivers a signal wave, comprising: a. a coherent source mining a coherent wave at a wavelength approximately equal to that of the signal wave and the propagation direction of which is inclined to the propagation direction of the optical waves output by the fiber amplifiers; b. a mirror configured to make the coherent wave interfere with the optical waves output by the fiber amplifiers; c. a means for generating an interferogram comprising an array of fringes; d. an interferogram detection means that identity relative positions of the fringes transcribing an inter-fiber phase law; and wherein the detection means comprise at least one of the following: i. as matrix of the CCD type detectors; ii. a matrix of CMOS type detectors; e. a spatial phase modulator; and f. a signal processor and display for processing the detected phase law and for displaying it on the spatial modulator, the spatial modulator positioned to be read by the signal wave and to generate a phase-modulated signal wave selectively at each of the fiber amplifiers, and to compensate for the phase shifts induced by the fiber amplifiers.