Multi-band Acousto-Optical Filters for Correlation Spectroscopy

The problem of creating optical filters with an arbitrary transmission curve for correlation spectroscopy problems is considered. Experiments showed that acousto-optical filters with a digital synthesis of a high-frequency control signal make it possible to create transmission functions of various types: multi-band, with variable positions and widths of windows, including asymmetric shapes, which makes it possible to synthesize transmission functions of complex form.