Acta Optica Sinica, Volume. 7, Issue 7, 662(1987)
A new kind of heterodyne fiber-optic gyroscope
In this paper, a novel fiber-optic heterodyne detection technique of rotation rate is described. Using electro-optic frequency shifter and highly birefringent single-mode fiber, the heterodyne fiber-optic gyroscope system no more needs the use of acousto-optic devices and is free from the direct-current drift in the electronics. In addition, the reciprocity of the optical path in the system is improved. Preliminary experiments have shown a good linearity of the scale factor.
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PENG GANGDING, HUANG SHANGYUAN, LIN ZONGQI. A new kind of heterodyne fiber-optic gyroscope[J]. Acta Optica Sinica, 1987, 7(7): 662