Acoustic optic modulation experimental device（SGT-1)

1Observe the diffraction phenomenon of acousto-optic modulation (Bragg diffraction);2Test the modulation characteristics of acousto-optic crystals;3Modulation crystal: lead molybdate crystal;4Modulation method: horizontal modulation;5Modulation voltage:0-40VPP；6Modulation waveform:1KHZSine wave (or other waveform, such as sawtooth wave);7Modulation bandwidth:20MHZ；8Power supply:220±10%，50HZ；9Laser wavelength:650~680nm；10Laser power:0~2.5mW；11Diffraction efficiency:>70%；12Display accuracy of digital meter:3.5position

Experimental objective:

1.Understand the principle of acousto-optic interaction

2. Observation of Bragg diffraction phenomenon

3. Study the characteristics of acousto-optic modulation and acousto-optic deflection

Acoustic optic modulation experimental device（SGT-1)Experimental content:

1. Observing the diffraction phenomenon of acousto-optic modulation

2. Observing the modulation characteristics of communication signals

3. Experimental demonstration of acousto-optic modulation and optical communication

4.Calculate the deflection angle of acousto-optic modulation

5.Measure the speed of ultrasonic waves

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