Frequency Stabilization of an Internal-Mirror He-Ne Laser using an Axial Mode Beat

Akira SASAKI; Takehiko OKADA; Sunao KAWAI; Hisayuki AOYAMA

doi:10.2184/lsj.21.9_938

Akira SASAKI, Takehiko OKADA, Sunao KAWAI, Hisayuki AOYAMA

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Keywords: Frequency stabilization, He-Ne laser, Internal-mirror He-Ne laser

JOURNAL FREE ACCESS

1993 Volume 21 Issue 9 Pages 938-944

DOI https://doi.org/10.2184/lsj.21.9_938

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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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