Educational content :

• Focusing the laser beam through a lens
• A djustment and alignment of a laser cavity via an external mirror
  
• Autocollimation method, resonant cavity, laser effects
  
• Study of conditions of stability of the cavity
  
• Measurement of  the transmission power
  
• Rayleigh length, divergence
• Geometric properties : spatial profile, Gaussian beam, waist
• Study of spectra of the gas Helium-Neon laser and radiation, monochromatic, luminescence
• Study of polarization, measuring the rate of polarization
  
• Observation of transverse modes 

Educational content :

• Curve current / voltage of a diode laser
  
• Measurement of optical power versus current of the photodiode internal diode (current monitor)
  
• Calculation of conversion rate (mA / mW)
  
• Curve of optical power / current injection
  
• Calculation of optical-electrical efficiency
  
• Determination of the oscillation threshold
• Change the threshold of oscillation with T °
  
• Change in optical power with the T °
  
• Variation of wavelength with the supply current and the T °
  
• Measurement of the divergent beam emitted
  
• Measurement of polarization as a function of optical power