THE ANALYSIS OF STRATA FORM IN HOLOGRAPHIC EMULSION AND A VIEW OF AN IMAGE RECONSTRUCTED WITH A FOURIER-HOLOGRAM

This paper examines the process of image reconstruction with volume Fourier-hologram and Fourier semi-transparent reflective hologram used in optical interferometer on the basis of spatial-spectral method of the holographic interferometry. The paper describes the configuration of strata in emulsion of holograms of this type. We have obtained the mathematical expression allowing calculating numbers of strata in a Fourier-hologram emulsion. The relation for a cumulative distribution function of space frequencies of reflection is also illustrated herein. It has been demonstrated that, with the placement of reflective mirror in immediate proximity behind the semi-transparent reflective-type Fourier-hologram and under a small angle to it, the interferogram in the form of elliptic-shaped strata is formed on a screen placed in front of this Fourier-hologram. It has been established in mathematical terms that for a mirror placed behind hologram, increase of mirror inclination angle in relation to the hologram results in reduction of linear dimensions of a central light spot and in increment of elongation of image ellipses. Interference holography can be used in the optical system of fiber-optic gyroscope (FOG). Processing interference pattern with FOG hologram increases the resolution of FOG to order and more, which in turn allows you to either improve the accuracy of the device while preserving the length of the optical fiber in a coil, or reduce the length of the optical fiber at a lower resolution of FOG. Both approaches allow to reduce the cost of FOG and accordingly to make it acceptable to use civilian vehicles.