Frequency Stabilization of AlGaAs DH Lasers

  • Tsuchida Hidemi
    Research Laboratory of Precision Machinery and Electronics, Tokyo Institute of Technology
  • Ohtsu Motoichi
    Research Laboratory of Precision Machinery and Electronics, Tokyo Institute of Technology
  • Tako Toshiharu
    Research Laboratory of Precision Machinery and Electronics, Tokyo Institute of Technology

説明

The frequency of AlGaAs DH lasers was stabilized at the resonant frequency of a Fabry-Perot interferometer by controlling the injection current. The interferometer was controlled by a Lamb dip stabilized He–Ne laser at 633 nm. The frequency stability obtained here was 2.0×10−11≤σ≤2.1×10−9 for 10 ms≤τ≤500 s, where σ and τ represent the square root of the Allan variance and the integration time, respectively.

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