| 摘要 |
A device for cancelling the Fizeau effect in a ring-shaped laser. A mixing device mixes the two progressive waves of said ring-shaped laser, a detecting device coupled to the output of said mixing device detects the beat frequency of the two progressive waves and a control device coupled between the output of detecting device and the current inputs of the ring-shaped laser and responsive to the beat frequency causes the input current to the ring-shaped laser to create an effect therein equal to, in magnitude, and opposite to, in direction, to the Fizeau effect.
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