| 摘要 |
A stabilizing circuit for a two frequency laser wherein the two modes of oscillation of the laser are converted by a quarter wave plate and a rotating polarizer into two separate components, the difference in intensity of these components serving to produce an error signal from a detector circuit synchronized with the rotating polarizer, the error signal controlling a piezoelectric transducer coupled to the cavity resonator of the laser to tune the laser. A brushless D.C. motor serves to rotate the polarizer and at the same time provide the synchronizing signals to the detector circuit.
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