Fibe-optic gyroscope is an interferometricsensor, and the characteristic of polarization influences its precision, therefore the polarization state of the fiber need to be tested.
光纤陀螺是干涉型传感器，光的偏振特性影响该传感器的精度，因此需要对光纤的偏振态进行精确的测试。
2
During the design of a practical interferometric fiber-optic sensor, one of the key problems is to compensate phase random shifting and eliminate frequency doubling caused by strong signal.
在干涉型光纤传感器的实用化设计过程中，相位随机漂移补偿及强信号下出现的倍频的消除是关键问题之一。
3
This sensor system simultaneously measures the three parameters using the method of low coherence interferometric signal demodulation combined with optical spectrum measurement of the FBG and EFPI.