| 摘要 |
A gyro and an operating method therefor, capable of reducing coupling losses which arise when laser beams enter a photodetector, and noise which develops due to light entering into a laser from external reflection points. A gyro according to the present invention comprises a ring resonator type laser in which laser beams circularly counter propagate, and it detects a change in a current or an impedance based on a beat which is generated by the interference of the laser beams counter propagating each other within the laser.
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