| 摘要 |
An optical gyro reduces the coupling loss generated when emitted laser beams are incident upon a photo detector and the noise generated by the laser beams reentering the laser from an external point of reflection. The gyro includes a ring resonator type semiconductor laser for having laser beams transmitted circularly in opposite directions relative to each other and a terminal for detecting a beat signal, with the active layer of the semiconductor laser being ring-shaped.
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