论文信息 - Fabry–Pérot Fiber Sensor for Simultaneous Measurement of Refractive Index and Temperature Based on an In-Fiber Ellipsoidal Cavity

Fabry–Pérot Fiber Sensor for Simultaneous Measurement of Refractive Index and Temperature Based on an In-Fiber Ellipsoidal Cavity

A Fabry-Pérot fiber sensor for the simultaneous measurement of refractive index (RI) and temperature based on an in-fiber ellipsoidal cavity is proposed. The sensor head consists of an ellipsoidal air-microcavity, which is formed by splicing together a single-mode fiber and a photonic crystal fiber with a simple arc-discharge technique. The external RI is determined through the analysis of the fast Fourier transform. The sensor is also capable of simultaneous measurement of temperature by tracking the wavelength shift. Easy fabrication, low-cost, and high-contrast make it appropriate for practical application.

Tingting Wang | Ming Wang

[1] H. Tam,et al. High-pressure and high-temperature characteristics of a Fabry-Perot interferometer based on photonic crystal fiber. , 2011, Optics letters.

[2] James S. Sirkis,et al. In-line fiber etalon (ILFE) fiber-optic strain sensors , 1995 .

[3] Tao Zhu,et al. In-line fiber Fabry-Perot refractive-index tip sensor based on endlessly photonic crystal fiber , 2008 .

[4] Ji-huan Chen,et al. High-Resolution and Temperature-Insensitive Fiber Optic Refractive Index Sensor Based on Fresnel Reflection Modulated by Fabry–Perot Interference , 2010, Journal of Lightwave Technology.

[5] Yunjiang Rao,et al. Laser-micromachined Fabry-Perot fiber-optic tip sensor for temperature-independent measurement of refractive index , 2008, International Conference on Optical Fibre Sensors.

[6] Tao Wei,et al. Temperature-insensitive miniaturized fiber inline Fabry-Perot interferometer for highly sensitive refractive index measurement. , 2008, Optics express.

[7] Orlando Frazão,et al. Fiber Bragg grating sensing system for simultaneous measurement of salinity and temperature , 2004 .

[8] Tingting Wang,et al. Micro-Fabry–Pérot Interferometer With High Contrast Based on an In-Fiber Ellipsoidal Cavity , 2012, IEEE Photonics Technology Letters.

[9] Gang-Ding Peng,et al. High spatial resolution fiber-optic Fizeau interferometric strain sensor based on an in-fiber spherical microcavity , 2008 .