China Wholesale Fiber Communication Factories – LPT-10 Apparatus for Properties Measurement of Semiconductor Laser – Labor

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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
Semiconductor Laser	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

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