LPT-3 Experimental System for Electro-Optic Modulation
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Experimental System for Electro-Optic Modulation
Acousto-optic effect refers to the phenomenon of diffraction of light through a medium which is disturbed by ultrasound. This phenomenon is the result of interaction between light waves and acoustic waves in the medium. The acousto-optic effect provides an effective means to control the frequency, direction and strength of the laser beam. Acousto-optic devices made by acousto-optic effect, such as acousto-optic modulator, acousto-optic deflector and tunable filter, have important applications in laser technology, optical signal processing and integrated optical communication technology.
Experiment Examples
1. Display electro-optic modulation waveform
2. Observe electro-optic modulation phenomenon
3. Measure half-wave voltage of an electro-optic crystal
4. Calculate electro-optic coefficient
5. Demonstrate optical communication using electro-optic modulation technique
Specifications
Power Supply for Electro-Optic Modulation | |
Output Sine-Wave Modulation Amplitude | 0 ~ 300 V (Continuously Adjustable) |
DC Offset Voltage Output | 0 ~ 600 V (Continuously Adjustable) |
Output Frequency | 1 kHz |
Electro-Optic Crystal (LiNbO3) | |
Dimension | 5×2.5×60 mm |
Electrodes | Silver Coating |
Flatness | < λ/8 @633 nm |
Transparent Wavelength Range | 420 ~ 5200 nm |
He-Ne Laser | 1.0 ~ 1.5 mW @ 632.8 nm |
Rotary Polarizer | Minimum Reading Scale: 1° |
Photoreceiver | PIN Photocell |
Part List
Description | Qty |
Optical Rail | 1 |
Electro-Optic Modulation Controller | 1 |
Photoreceiver | 1 |
He-Ne Laser | 1 |
Laser Holder | 1 |
LiNbO3 Crystal | 1 |
BNC Cable | 2 |
Four-Axis Adjustable Holder | 2 |
Rotary Holder | 3 |
Polarizer | 1 |
Glan Prism | 1 |
Quarter-Wave Plate | 1 |
Alignment Aperture | 1 |
Speaker | 1 |
Ground Glass Screen | 1 |