根据传统光学干涉原理研制出的相位调制型光纤传感器，其突出优点是灵敏度高。
The optic fiber sensors of phase modulation type developed by the interference theory in traditional optics are high sensitive.
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。
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.
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。
Fibe-optic gyroscope is an interferometric sensor, and the characteristic of polarization influences its precision, therefore the polarization state of the fiber need to be tested.
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