All-fiber single-mode fiber frequency-modulated continuous-wave Sagnac gyroscope.
An all-fiber single-mode fiber unbalanced Sagnac gyroscope is described. The gyroscope is based on optical frequency-modulated continuous-wave interference and consists primarily of four Y-type single-mode fiber directional couplers and a single-mode fiber coil. The rotational velocity of the fiber coil is determined simultaneously by detection of the phase shift of the beat signal. The advantages and limitations of the gyroscope are discussed.
Zheng
Jesse
J
PhotonTech, 1980 E51 Avenue, Vancouver, BC V5P 1V9, Canada. gang.zheng@aicompro.com