China Wholesale Fiber Communication Factories – LPT-10 Apparatus for Properties Measurement of Semiconductor Laser – Labor
China Wholesale Fiber Communication Factories – LPT-10 Apparatus for Properties Measurement of Semiconductor Laser – Labor Detail:
Experiments
1. Measure the far-field distribution of the beam and calculate its vertical and horizontal divergent angles.
2. Measure the voltage-current characteristics.
3. Measure the relationship between output optical power and current, and acquire its threshold current.
4. Measure the relationship between the output of optical power and current at different temperatures, and analyze its temperature characteristics.
5. Measure the polarization characteristics of the output light beam and calculate its polarization ratio.
6. Optional experiment: verify Malus’s law.
Specifications
Item | Specifications |
Semiconductor Laser | Output Power< 2 mW |
Center Wavelength: 650 nm | |
Power Supply of Semiconductor Laser | 0 ~ 4 VDC (continuously adjustable), resolution 0.01 V |
Photo Detector | Silicon detector, aperture of light entrance 2 mm |
Angle Sensor | Measurement range 0 – 180°, resolution 0.1° |
Polarizer | Aperture 20 mm, rotation angle 0 – 360°, resolution 1° |
Light Screen | Size 150 mm × 100 mm |
Voltmeter | Measurement range 0 – 20.00 V, resolution 0.01 V |
Laser Power Meter | 2 µW ~ 2 mW, 4 scales |
Temperature Controller | Control range: from room temperature to 80 °C, resolution 0.1 °C |
Part List
Description | Qty |
Main suitcase | 1 |
Laser support and angle sensing device | 1 set |
Semiconductor laser | 1 |
Slide rail | 1 |
Slide | 3 |
Polarizer | 2 |
White screen | 1 |
Support of white screen | 1 |
Photo detector | 1 |
3-core cable | 3 |
5-core cable | 1 |
Red connection wire (2 short, 1 long) | 3 |
Black connection wire (medium size) | 1 |
Black connection wire (large size, 1 short, 1 long) | 2 |
Power cord | 1 |
Instruction manual | 1 |
Product detail pictures:

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