Acousto-optic frequency shifters provide a versatile means of shifting the frequency of optical signals through the interaction of sound waves and light waves. Their flexibility and controllability make them valuable tools in a wide range of scientific and technological applications.
The devices find applications in various fields. In telecommunications, they are used for frequency modulation and demodulation in fiber optic systems. In spectroscopy, they can be employed to study the interaction of light with matter by shifting the frequency of a laser beam.