-Instrument Introduction

The acousto-optic effect refers to the diffraction phenomenon of light passing through a medium disturbed by ultrasonic waves, which is the result of the interaction between light waves and sound waves in the medium. The acousto-optic effect provides an effective means of controlling the frequency, direction, and intensity of laser beams. Acousto optic devices made using the acousto-optic effect, such as acousto-optic modulators, acousto-optic deflectors, and tunable filters, have important applications in laser technology, optical signal processing, and integrated optical communication technology.

-Experimental content

1. Understand the mechanism of acousto-optic interaction

2. Understand the principle of Bragg diffraction

3. Observe Bragg diffraction and measure diffraction angle

4. Calculate sound velocity through acousto-optic effect