Simultaneous Measurement of Strain and Temperature Using a Single Emission Line
Simultaneous Measurement of Strain and Temperature Using a Single Emission Line
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DOI：
10.1109/jlt.2014.2374531
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发表时间：
2015-06
影响因子：
4.7
通讯作者：
D. Leandro;M. Ams;M. López-Amo;T. Sun;K. Grattan
中科院分区：
文献类型：
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作者：
D. Leandro;M. Ams;M. López-Amo;T. Sun;K. Grattan
在这项研究中，我们提出并展示了一种新的传感器系统，通过一个独特的组合的长周期光栅和光纤激光器的基础上的光纤布拉格光栅的应变和温度的同时测量。为了实现这一点，创建了一种新的掺铒光纤激光器结构，其显示出55 dB的光信噪比和在光谱分析仪上测量的-5至0 dBm之间的峰值功率。应变和温度信息可以通过使用一个独特的发射线，通过监测光纤激光器的波长漂移和功率电平的变化，这两者都表现出清晰的线性行为。
In this study, we present and demonstrate a novel sensor system for simultaneous measurement of strain and temperature through a unique combination of a long period grating and a fiber laser based on a fiber Bragg grating. In order to achieve this, a new erbium-doped fiber laser structure is created, showing an optical signal-to-noise ratio of 55 dB and a peak power measured on the optical spectrum analyzer between -5 and 0 dBm. The strain and the temperature information can be obtained by using a unique emission line through monitoring both the fiber laser wavelength shift and the change of the power level, both of which showing a clear linear behavior.