In this this work, the acousto-optical interaction is studied. Since its inception, in 1922, it has been widely studied and applied. Here, the development of three advanced application of this branch of physics is considered. First, is analyzed the potential use of an acousto-optical cell for be included as a dynamic diffraction grating, in order to improve in many ways the actual static gratings used, in the Guillermo Haro astrophysical observatory. For this, it was necessary to estimate the performance of several acousto-optical materials available today. Second, a specific mechanism of the acousto-optical nonlinearity is studied to regulate the performance of the collinear acousto-optical filter. The theory of this phenomenon is analyzed and confirmed experimentally using and advanced filter based on calcium molybdate (CaMoO 4 ) single-crystal. The transmission function of electronically tunable filter exhibits a dependence on the applied acoustic power density, and as a result, it is possible to squeeze the transmission function at the cost of decreasing the device efficiency partially. And at final, the triple product processor is studied for its potential application in spectroscopy designed for 3-inch optics and analyzing all the materials needed for its realization. The need to use 3-inch optics is mainly oriented to exploit an acousto-optical cells with large aperture windows to get a large time-bandwidth product.