Acousto-optic Modulator
An acoustooptic modulator is a modulation technology based on the acoustooptic effect, that is, the diffraction effect of sound waves on light waves. It can be used to control the intensity change of a laser beam, and its speed is much faster than that of the mechanical shutter. Acoustooptic modulator has the characteristics of wide modulation bandwidth, short rise time, high damage threshold, high extinction ratio, small size, high modulation efficiency, easy coding, and convenient use. It is widely used in intensity modulation, laser cooling, laser Doppler velocimetry, laser Doppler vibrometer (LDV), laser linewidth measurement, laser radar, marking, material processing, micromachining, printing, drilling, and …