介绍了干涉型光纤传感器的基本原理,结合实例阐述了各种干涉型光纤传感器的设计方法与实现技术,讨论了光纤传感器所用光源的选择,举例说明了干涉仪在大规模、长距离传感系统中的应用方法,并展望了这类光纤传感器的发展前景。

The principles and architectures of interferometric fiber sensors based on M-Z,Michelson,Sagnac,F-P and low-coherence interferometers are introduced. Several designs are described to show the way to apply interference to the design of optics fiber sensors to improve sensing sensitivity and eliminate noise. Recent researches on large-scale and long distance optics fiber interferometric sensor array and system are presented, showing how to combine inter－ference with other advanced techniques such as WDM、EDFA and so on.