Multiplexed fiber Fabry-Perot interferometer sensors based on ultrashort Bragg gratings
Multiplexed fiber Fabry-Perot interferometer sensors based on ultrashort Bragg gratings
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DOI：
10.1109/lpt.2007.894361
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发表时间：
2007-03-01
影响因子：
2.6
通讯作者：
Wang, Anbo
中科院分区：
文献类型：
--
作者：
Wang, Zhuang;Shen, Fabin;Wang, Anbo
本文报道了一种由两个超短均匀布喇格光栅组成的光纤法布里-珀罗干涉传感器。该传感器具有低至0.002 dB的插入损耗，这使得传感器的多路复用能力大大增加。五十个传感器的实验复用沿着一个单一的光纤使用频分复用方法。理论上可以预期500多个传感器的多路复用潜力。并研究了该传感器在温度和应变测量中的应用。
This letter reports a fiber Fabry-Perot interferometer sensor formed by two closely spaced ultrashort uniform Bragg gratings within fiber core. The sensor has insertion loss as low as 0.002 dB which enables a considerable increase in the sensor's multiplexing capability. Fifty sensors are experimentally multiplexed along a single fiber using a frequency-division-multiplexing method. The potential of multiplexing more than 500 sensors is theoretically expected. The sensor's application in temperature and strain measurement is also investigated.