Semiconductor Laser Physics Lab Experimental Instrument

The experimental device measures semiconductor laser power, voltage, and current to help users understand the continuous output characteristics of semiconductor lasers. The fluorescence emitted when the injection current is below the threshold and the spectral line variations when laser oscillation exceeds the threshold can be observed using an optical multichannel analyzer.

• Measurement of semiconductor laser power, voltage, and current
• Study of continuous output characteristics of semiconductor lasers
• Observation of fluorescence emission below threshold current
• Observation of spectral line changes above threshold current
• Spectral analysis using an optical multichannel analyzer

Optical Multichannel Analyzer :

• 300–900 nm
• Accuracy ± 0.4 nm
• Wavelength repeatability ≤ 0.2 nm
• Resolution better than 0.2 nm
• Relative aperture D/F = 1/7

Laser Power Supply :

• 0–40 mA continuously adjustable

Laser :

• Power ≥ 5 mW
• Wavelength 650 nm

Rotating Frame :

• 0–360°
• Minimum scale 1°

Optical Power Tester :

• 2 μW–200 mW six-speed power range
• 3½-digit digital display

Attenuation Sheet :

• ABS
• Light intensity transmittance 5%

Clamping Tool :

• Round and square laser fixture