Simultaneous Measurement Sensors of Temperature and Strain Based on Hollow Core Fiber and Fiber Bragg Grating

TAN Zhan1 LIAO Changrui1 LIU Shen1 HOU Maoxiang1 ZHANG Zhe1 GUO Kuikui1 WANG Yiping1

(1.Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China 518060)

【Abstract】A novel temperature and strain dual-parameter fiber sensor is proposed, which is constructed via the cascading between a hollow core fiber and a fiber Bragg grating. The hollow core fiber confines the light to transmit inside the air core based on the anti-resonant mechanism and the light satisfying the resonance condition leaks out of the air core, which is indicated as a periodic loss peak in the transmission spectrum. Because the physical mechanisms for hollow core fiber and fiber Bragg grating as well as their spectral responses to external temperature and strain are different, the simultaneous measurement of temperature and strain can be realized based on the coupling matrix. The experimental results show that the temperature sensitivities of hollow core fiber and fiber Bragg grating are 24.55 pm/°C and 12.76 pm/°C near 1 550 nm wavelength, respectively. In contrast, the strain sensitivities are −0.70 pm/με and 1.02 pm/με, respectively. The proposed dual-parameter sensor is simple in fabrication and has high measurement accuracy.

【Keywords】 fiber optics; optical fiber sensor; hollow core fiber; fiber Bragg grating; temperature sensor; strain sensor;

【DOI】

【Funds】 National Natural Science Foundation of China (61425007, 61635007) Major Science and Technology Project of Guangdong Province (2015B010105007) Natural Science Foundation of Guangdong Province (2014A030308007) Science and Technology Plan of Shenzhen City (JCYJ20160427104925452, JCYJ20170412105604705)

Download this article

(Translated by CAI ZJ)

    References

    [1] Liao Y B. Devleopment of optical fiber sensors [J]. Optoelectronic Technology & Information, 2000, 13 (3): 27–29 (in Chinese).

    [2] Jiang D S, He W. Review of applications for fiber Bragg grating sensors [J]. Journal of Optoelectronics·Laser, 2002, 13 (4): 420–430 (in Chinese).

    [3] Liao Y B, Li M. The development of optical fiber sensors [J]. Sensor World, 2004, 10 (2): 6–12 (in Chinese).

    [4] Liao Y B. Fiber optics: principles and applications [M]. Beijing: Tsinghua University Press, 2010 (in Chinese).

    [5] Rao Y J, Wang Y P, Zhu T. Fiber grating principles and applications [M]. Beijing: China Science Press, 2006 (in Chinese).

    [6] Shu X, Zhao D, Liu Y, et al. Effectively simultaneous temperature and strain measurement utilising a dual-grating sensor formed by type IA and type IIA FBGs [J]. Proceedings of IEEE, 2002, 2: 1740–1745.

    [7] Wang M G, Wei H, Tong Z, et al. Simultaneous measurement of strain and temperature using a single dual-period fiber grating [J]. Acta Optica Sinica, 2002, 22 (7): 867–869 (in Chinese).

    [8] Tong Z R, Guo Y, Yang X F, et al. Simultaneous measurement of temperature and strain based on a long-period fiber grating combined with a Lyot fiber filter in a linear configuration [J]. Chinese Journal of Lasers, 2012, 39 (3): 0305002 (in Chinese).

    [9] Tong Z R, Wang J Y, Yang X F, et al. Simultaneous measurement of temperature and strain based on core diameter mismatch and fiber Bragg grating [J]. Acta Optica Sinica, 2012, 32 (12): 1206001 (in Chinese).

    [10] Miao Y, Liu B, Zhao Q. Simultaneous measurement of strain and temperature using single tilted fibre Bragg grating [J]. Electronics Letters, 2008, 44 (21): 1242–1243.

    [11] Mokhtar M R, Sun T, Grattan K T V. Bragg grating packages with nonuniform dimensions for strain and temperature sensing [J]. IEEE Sensors Journal, 2012, 12 (1): 139–144.

    [12] Shi J, Xiao S, Chen H, et al. Simultaneous measurement of strain and temperature using a highbirefringence fiber loop mirror and an erbium-doped1206007–6fiber [C].∥AsiaCommunicationsandPhotonics Conference and Exhibition, December 8–12, 2010, Shanghai, China. New York: IEEE, 2011: 473–474.

    [13] Bian J C, Lang T T, Yu W J, et al. Study of fiber sensor forthesimultaneousmeasurementof temperature and strain based on Mach-Zehnder interferometer [J]. Journal of Optoelectronics·Laser, 2015, 26 (11): 2169–2174 (in Chinese).

    [14] Zheltikov A M. Ray-optic analysis of the (bio) sensing ability of ring-cladding hollow waveguides [J]. Applied Optics, 2008, 47 (3): 474–479.

    [15] Zhu T, Xu M, Rao Y J, et al. Miniature humidity sensor based on all-fiber Fabry-Perot interferometer formed by hollow core fiber [J]. Acta Optica Sinica, 2010, 30 (6): 1592–1596 (in Chinese).

    [16] Gao R, Jiang Y, Zhao Y. Magnetic field sensor based on anti-resonant reflecting guidance in the magnetic gel-coated hollow core fiber [J]. Optics Letters, 2014, 39 (21): 6293–6296.

    [17] Jiang Y X, Liu B H, Zhu X S, et al. Study of silver coated hollow-core fiber surface plasmon resonance sensor [J]. Acta Optica Sinica, 2014, 34 (2): 0223004 (in Chinese).

    [18] Xu B, Wang C, Wang D N, et al. Fiber-tip gas pressure sensor based on dual capillaries [J]. Optics Express, 2015, 23 (18): 23484–23492.

    [19] Zhang Y, Zhu X S, Shi Y W. Hollow optical fiber surface plasmon resonance sensor based on light intensity detection [J]. Acta Optica Sinica, 2017, 37 (6): 0606001 (in Chinese).

    [20] Lin H, Zhang X, Zhu X S, et al. Refractive index sensor based on hollow optical fiber with metaldielectric-metal multilayered films structure [J]. Acta Optica Sinica, 2018, 38 (6): 0606006 (in Chinese).

    [21] Litchinitser N M, Abeeluck A K, Headley C, et al. Antiresonant reflecting photonic crystal optical waveguides [J]. Optics Letters, 2002, 27 (18): 1592–1594.

    [22] Zhang X B, Xiao H, Wang T Y. Recent advances in capillary based optical fiber sensors [J]. Journal of Applied Sciences, 2017, 35 (4): 523–536 (in Chinese).

    [23] Litchinitser N M, Dunn S C, Usner B, et al. Resonances in microstructured optical waveguides [J]. Optics Express, 2003, 11 (10): 1243–1251.

    [24] Zhou Z, Tian S Z, Zhao X F, et al. Theoretical and experimental studies on the strain and temperature sensing performance of optical FBG [J]. Journal of Functional Materials, 2002, 33 (5): 551–554 (in Chinese).

    [25] Gao R, Lu D F, Cheng J, et al. Optical displacement sensor in a capillary covered hollow core fiber based on anti-resonant reflecting guidance [J]. IEEE Journal of Selected Topics in Quantum Electronics, 2017, 23 (2): 193–198.

This Article

ISSN:0253-2239

CN: 31-1252/O4

Vol 38, No. 12, Pages 98-104

December 2018

Downloads:0

Share
Article Outline

Abstract

  • 1 Introduction
  • 2 Sensor principle
  • 3 Design and fabrication of the dual-parameter sensor
  • 4 Dual-parameter sensing experiment
  • 5 Conclusions
  • References