LPT-3 Experimental System for Electro-Optic Modulation

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