Fiber-taper seeded long-period grating pair as a highly sensitive refractive-index sensor
Fiber-taper seeded long-period grating pair as a highly sensitive refractive-index sensor
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DOI：
10.1109/lpt.2005.847437
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发表时间：
2005-06-01
影响因子：
2.6
通讯作者：
He, SL
中科院分区：
文献类型：
--
作者：
Ding, JF;Zhang, AP;He, SL
我们报告了基于长周期光栅（LPG）对（其间具有光纤锥度部分）的高灵敏度折射率传感器的制造和表征。两个具有类似 3 dB 透射率的 LPG 形成光纤内马赫-曾德干涉仪。在两个液化石油气之间制作光纤锥度，以提高和定制传感器的灵敏度。实验中实现了比普通液化石油气对高约五倍的灵敏度。
We report the fabrication and characterization of it highly sensitive refractive-index sensor based on a long-period grating (LPG) pair with a fiber-taper section in between. Two LPGs with similar to 3-dB transmissivity form an in-fiber Mach-Zehnder interferometer. A fiber taper is made between the two LPGs to improve and tailor the sensitivity of the sensor. Enhanced sensitivity, which is about five times higher than that of a normal LPG pair, is achieved in the experiment.