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Stabilised
HeNe Stabilised

Stabilised Helium Neon (633nm) Lasers

Melles Griot stabilized helium neon laser systems are ideal for applications such as metrology, interferometry, and surface defect inspection that require a single, invariant frequency. These single-longitudinal-mode systems have a coherence length measured in kilometers, and exhibit excellent power stability for long periods of time. They permit highly repeatable, highly accurate measurements with superb resolution. The output is an economical and reliable calibration reference and a well-defined low-noise frequency source for fiber-optic and diode laser testing. Both output power and frequency can be varied over a wide range; however, changing the power will also change the frequency and vice versa. Critical specifications include:

  • 1-MHz frequency stability at 473.61254 THz
  • <0.2% power fluctuation over eight hours
  • Frequency tunable over 300 MHz
  • Linear polarization with >5000:1 extinction ratio.


Melles Griot stabilized HeNe lasers are compact, incorporating the laser and stabilization electronics in a small package. They are stabilized using the slope stabilization method, and are ideal for OEM applications.

 
 
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