USE OF SUCCESSIVE ACOUSTIC TRAINS FOR SPECTRAL-ANALYSIS OF OPTICAL RADIATION IN A COLLINEAR FILTER

A system of equations describing the collinear diffraction of light by successive three-dimensional acoustic trains of finite length with a Gaussian amplitude distribution is derived. The solution of these equa tions provides the distribution pattern of the Gaussian amplitudes of transmitted and diffracted light under strong acoustooptical interacti on and the dependence of the transmission band of an acoustooptical ce ll on the ratio between the train length and the crystal length as wel l as on the phase difference between the trains. The transmission curv es are also analyzed for light diffraction by non-Gaussian acoustic tr ains under strong acoustooptical interaction.