All-fiber Fabry-Pérot interferometer refractive index sensor formed by ring reflector

作者：Ke Tao; Zhu Tao^*; Rao Yunjiang; Duan Dewen; Xu Min

来源：Acta Optica Sinica, 2010, 30(6): 1608-1612.

DOI：10.3788/AOS20103006.1608

• All fiber
• Content detection
• Core diameters
• Hollow fiber
• Low-viscosity liquids
• Optical fiber sensor
• Optical fiber sensors
• Reflector structures
• Refractive index sensor
• Ring surfaces
• Small Hole
• Two section

All-fiber Fabry-Pe´rot based on ring reflector structure is fabricated by orderly splicing two section of hollow fibers with different core diameters to the light induced single-mode fiber. As the small hole in the ring surface is easy for gas or liquid in and out the cavity, it is useful in detecting the refractive index of gas and liquid. The forming theory of the fiber\\optic Fabry-Pe´rot cavity is analyzed, and the refractive index sensor base on ring reflector is studied by experiments. A resolution of the refractive index 1.652 × 10-6 is obtained in a measuring refractive index experiment. It can be anticipated that the Fabry-Pe´rot refractive index sensors with ring reflector will have important applications in the fields of the toxic, flammable, explosive gases and low viscosity liquid refractive index or content detection.

• 出版日期2010
• 单位电子科技大学