FIELD: physics.;SUBSTANCE: each of the resonators contains a medium which is excited to generate light waves. Each of the resonators is formed by a set of mirrors which includes two movable mirrors. Each of the three movable mirrors participates in forming two resonators. Pre-positioning of the three mirrors is carried out. The three mirrors are simultaneously moved with the same amplitude which is less than or equal to the intermediate mode of the resonator, such that each of the resonators passes through a length where maximum amplification is provided. Intensity of waves passing through each of the three resonators is measured for each triplet of positions occupied by the mirrors. The length of each of the resonators, where maximum intensity is provided, is determined based on the three triplets. The final positions of the mirrors where maximum intensity in the three resonators is provided are determined.;EFFECT: enabling faster positioning of mirrors.;7 cl, 9 dwg
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