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The possibilities of stabilization of the interference pattern by filtration of a random-phase noise caused by vibrations, turbulence, and other local changes in the wave front in interferometric measurements are investigated. Dynamic holographic recording in photorefractive Bi(12)TiO(20) crystals is used. The parameters of the holographic recording are presented for determination of the dynamic range for filtering. Noise filtering takes place in real time and contributes to the enhancement of the contrast and the signal-to-noise ratio of the interference pattern. This results in a considerable increase in the sensitivity and the accuracy of the interferometric measurements.

The applicability of cubic photorefractive crystals in which the recording can be fixed to holographic interferometric studies of microobjects is outlined. The possibility of observing the temporal behavior of the object by a method combining double exposure and real time interferometry is experimentally demonstrated.

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