Abstract

In this paper we give results of investigation of Fabry-Perot-type spherical mirrors interferometer hardware feature (HF), being used as a passive optical resonator for the selection of transverse higher-order modes in original beam of laser radiation. The major attention was focused on examining the transverse distribution of amplitude of light wave, passing through a given interferometer (resonator). By using the spherical mirrors, the operational properties of coherent spectrum analyzer optical systems can be extended considerably by means of illuminating the input signal with radiation, containing Gaussian-Hermite or Gaussian-Laguerre modes. The criteria of phase adjusting of a given resonator were grounded and the layouts of passive resonator for generating the transverse higher-order modes of radiation were proposed.Furthermore, it was demonstrated that while illuminating the input signal by the light beams, on the output plane of spectrum analyzer the differential of Fourier transform is developedExperimentally, the beams of coherent radiation, containing higher transverse modes were formed

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