Study of displacement sensor based on few-mode multi-core fiber

被引：0
作者：
机构：
[1] Key Laboratory of Micro-Opto-Electro-Mechanical System Technology, College of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin
来源：
Jia, Dagong | 1600年 / Science Press卷 / 41期
关键词：
Displacement detection; Few-mode multi-core fiber; Mode interference; Optical fiber sensor; Sensors;
D O I：
10.3788/CJL201441.0905006
中图分类号：
学科分类号：
摘要：
A new type displacement sensor based on few-mode multi-core fiber is presented. The sensor consists of two segments of single mode fiber and a segment of few-mode multi-core fiber. The sensing principle of the sensor is investigated and the experiments are performed to verify its feasibility. The experimental results show that the sensitivity of this sensor is -61.17 pm/μm with the elongation from 0 to 60 μm, error between the experimental results and the theoretical calculation is less than 3.9%. So the minimum change of displacement detected is 17 nm by using an optical spectrum analyzer (OSA) with high resolution.
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  • [1] Matsuo S., Sasaki Y., Ishida I., Et al., Recent progress on multi-core fiber and few-mode fiber, Optical Fiber Communication Conference, (2013)
  • [2] Xia C., Amezcua-Correa R., Bai N., Et al., Hole-assisted few-mode multi-core fiber for high-density space-division multiplexing, 24, 21, pp. 1914-1917, (2012)
  • [3] Yaman F., Bai N., Zhu B., Et al., Long distance transmission in few-mode fibers, 18, 12, pp. 13250-13257, (2010)
  • [4] Xia C., Amezcua-Correa R., Bai N., Et al., Low-crosstalk few-mode multi-core fiber for high-mode-density space-division multiplexing, European Conference and Exhibition on Optical Communication, (2012)
  • [5] Lin Z., Zheng S., Ren G., Et al., Characterization and comparison of 7-core and 19-core large-mode-area few-mode fibers, 62, 6, (2013)
  • [6] Hogg W.D., Janzen D., Valis T., Development of a fiber Fabry-Perot strain gauge, 1588, pp. 30-307, (1991)
  • [7] Li H.N., Li D.S., Song G.B., Recent applications of fiber optic sensors to health monitoring in civil engineering, Engineering Structures, 26, 11, pp. 1647-1657, (2004)
  • [8] Li K., Wen H., Li H., A study on miniature interferometer strain sensor based on EFPI, 29, 12, pp. 3282-3285, (2009)
  • [9] Chiu B., Hasting M., Digital demodulation for passive homodyne optical fiber interferometry based on a 3×3 coupler, 2292, pp. 371-382, (1994)
  • [10] Szustakowski M., Palka N., Contrast sensitive fiber optic Michelson interferometer as elongation sensor, 13, 1, pp. 19-26, (2005)
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