Abstract
The frequency of a commercially available internal-mirror He-Ne laser (λ=633nm) was stabilized by using an axial-mode beat frequency. The beat-frequency conversion technique between the axial-beat frequency and the output signal of a frequency synthesizer was used for the laser frequency stabilization. The frequency stability of 4.5×10-10 was estimated by means of the Allan variance analysis. The amplitude stability of this stabilized laser was estimated to be 0.21 %.
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