Simultaneous measurement of curvature and temperature based on optical fiber sensor

被引：0

作者：

Wang, Dong-Yuan ^{[1
]}

Sun, Ming-Ming ^{[1
]}

Jin, Yong-Xing ^{[1
]}

Wang, Jian-Feng ^{[1
]}

Dong, Xin-Yong ^{[1
]}

机构：

[1] Institute of Optoelectronic Technology, China Jiliang University, Hangzhou

来源：

Guangzi Xuebao/Acta Photonica Sinica | 2015年 / 44卷 / 11期

关键词：

Curvature sensor; Fiber Bragg grating; Fiber optical sensor; Mach-Zehnder interferometer; Simultaneous measurement;

D O I：

10.3788/gzxb20154411.1106004

中图分类号：

学科分类号：

摘要：

An optical fiber sensor based on a fiber Bragg grating and Mach-Zehnder interferometer was proposed and experimentally demonstrated for the measurement of curvature and temperature simultaneously. The sensor head is formed by combining a fiber Bragg grating with an all-fiber Mach-Zehnder interferometer which consists of two cascaded peanut-shape structures. Experimental results show that the interference peaks of the Mach-Zehnder interferometer transmission spectrum and the resonance peaks of the fiber Bragg grating transmission spectrum have a different sensitivity to curvature and temperature change, so that a matrix can be used to realize the simultaneous measurement of the curvature and temperature. Curvature sensitivity of the Mach-Zehnder interferometer is -27.58 nm/m-1 while fiber Bragg grating is not sensitive to the curvature change. Temperature sensitivity of the Mach-Zehnder interferometer and fiber Bragg grating in the experiment is 0.03869 nm/℃ and 0.01217 nm/℃, respectively. This proposed sensor employs all-fiber structure and the fiber Bragg grating is inserted between two cascaded peanut-shape structures, so it is compact and easy to make. © 2015, Chinese Optical Society. All right reserved.

引用

页数：5

共 19 条

[1]

Meng Q.-Q., Dong X.-Y., Chen Z.-M., Et al., Temperature-independent curvature sensor using FBG cladding modes based on a core misaligned splice, IEEE Photonics Technology Letters, 23, 12, pp. 804-806, (2011)

[2]

Pang F.-F., Liu H.-H., Guo H.-R., Et al., In-fiber Mach-Zehnder interferometer based on double cladding fibers for refractive index sensor, IEEE Sensors Journal, 11, 10, pp. 2395-2400, (2011)

[3]

Zheng Y.-Z., Dong X.-Y., Yang Y.-G., Et al., Magnetic field sensor with optical fiber bitaper-based interferometer coated by magnetic fluid, IEEE Sensors Journal, 14, 9, pp. 3148-3151, (2014)

[4]

Zhang Y.-B., Gao S.-R., Zhang A.P., Et al., Optically heated long-period grating as temperature-insensitive fiber-optic refractive-index sensor, IEEE Photonics Journal, 4, 6, pp. 2340-2345, (2012)

[5]

Guo T., Shang L.-B., Liu F., Et al., Polarization-maintaining fiber-optic-grating vector vibroscope, Optics Letters, 38, 4, pp. 531-533, (2013)

[6]

Chen L.-X., Huang X.-G., Li J.-Y., Et al., Simultaneous measurement of refractive index and temperature by integrating an external Fabry-Perot cavity with a fiber Bragg grating, Review of Scientific Instruments, 83, 5, (2012)

[7]

Guo T., Liu F., Guan B.-O., Et al., Polarimetric multi-mode tilted fiber grating sensors, Optics Express, 22, 6, pp. 7330-7336, (2014)

[8]

Peng Z., Chan C.C., Lew W.S., Et al., Temperature-insensitive magnetic field sensor based on nanoparticle magnetic fluid and photonic crystal fiber, IEEE Photonics Journal, 4, 2, pp. 491-498, (2012)

[9]

Li T., Dong X.-Y., Chan C.C., Et al., Humidity sensor with a pva-coated photonic crystal fiber interferometer, IEEE Sensors Journal, 13, 6, pp. 2214-2216, (2013)

[10]

Zhao Y., Jin Y.-X., Liang H.-H., Et al., Curvature sensor based on fiber loop mirror with polarization maintaining fiber, Microwave Optical and Technology Letters, 53, 9, pp. 2066-2068, (2011)

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