【摘 要】
：
We reported a few high-sensitive optical sensors based on different types of in-fiber air bubbles those were fabricated by use of a commercial fusion splice
【机 构】
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Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province
【出 处】
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The 4th Advances in Optoelectronics and Micro/nano-optics (A
论文部分内容阅读
We reported a few high-sensitive optical sensors based on different types of in-fiber air bubbles those were fabricated by use of a commercial fusion splicer.A high-sensitivity strain sensor based on an in-fiber Fabry-Perot interferometer (FPI) with an air cavity was demonstrated by means of splicing together two sections of standard single-mode fibers.The sensitivity of this strain sensor was enhanced to 6.0 pm/με by improving the cavity length of the FPI by means of repeating arc discharges for reshaping the air cavity.Moreover,such a strain sensor has a very low temperature sensitivity of 1.1 pm/C,which reduces the cross sensitivity between tensile strain and temperature.
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