Fiber Bragg grating vibration-sensing system, insensitive to Bragg wavelength and employing fiber ring laser
Fiber Bragg grating vibration-sensing system, insensitive to Bragg wavelength and employing fiber ring laser
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DOI：
10.1364/ol.35.002349
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发表时间：
2010-07-15
期刊：
影响因子：
3.6
通讯作者：
Tsuda, Hiroshi
中科院分区：
文献类型：
--
作者：
Tsuda, Hiroshi
设计并研制了一种以光纤布拉格光栅（FBG）传感器为环形腔镜的光纤环形激光器振动传感系统。光纤环形激光器以FBG传感器的布拉格波长发射激光，并且激光的强度随着施加到FBG传感器的振动而变化。实验表明，该系统可以检测到，具有良好的灵敏度，振动在一个广泛的频带，范围从几赫兹到超声波。该传感系统应该能够检测振动，而不管施加到FBG传感器的应变和温度。(C)2010年美国光学学会
A fiber Bragg grating (FBG) vibration-sensing system employing a fiber ring laser utilizing an FBG sensor as the ring cavity mirror was designed and developed herein. The fiber ring laser emitted lasing light at the Bragg wavelength of the FBG sensor, and the intensity of the lasing light varied with vibrations applied to the FBG sensor. Experiments demonstrated that this system could detect, with good sensitivity, vibrations over a broad band, ranging from just a few hertz up to ultrasound. This sensing system should be able to detect vibrations regardless of both the strain and temperature applied to the FBG sensor. (C) 2010 Optical Society of America