| 摘要 |
Acousto-optical digital-analog transformer with spatial-time integration includes medium of acousto-optical interaction excited with piezoelectric transformer, device of electric signal discretization that feeds input electric signal as sequence of radio-pulses filled with frequency that provides Bragg mode of diffraction. Additionally it includes unit for formation of modulated optical beam, converging lens, extra-axial diaphragm and photodetector. At that as input of acousto-optical digital-analog transformer with spatial-time integration there is input of discretization unit, with its output connected to input of piezoelectric transformer. From output of transformer acoustic pulses are fed to acoustic input of acousto-optical medium with its optical input connected to optical output of device for formation of modulated optical beam, optical output is connected to input of converging lens. Output of first diffraction order of converging lens is connected to input of extra-axial diaphragm with output connected to optical input of photodetector, its electric output if output of acousto-optical digital-analog transformer with spatial-time integration. |
