Simultaneous strain and temperature sensor based on polarization maintaining fiber and multimode fiber

Abstract A novel, simultaneous strain and temperature sensor utilizing polarization maintaining fiber (PMF) and multimode fiber (MMF) is proposed and experimentally demonstrated in this paper. The sensing head of this sensor can be obtained by splicing PMF and MMF in the structure of PMF-MMF-PMF. The extinction ratio of the transmission spectrum can be over 30 dB. The strain sensitivities of sensor by two spectrum dips can be 1.01 pm/μe and 1.27 pm/μe in the range from 0 to 2000 μe. Meanwhile, the temperature sensitivities of 49 pm/°C and 41 pm/°C can be achieved by two spectrum dips in the range from 30 °C to 70 °C. The sensitivity difference between the two spectrum dips can be used to realize dual parameters fiber sensing. This sensor exhibits the advantages of simple fabrication, compact structure and multi-purpose measuring. It may have the great potential in fields of robot arms and artificial limbs.

[1]  Yunjiang Rao,et al.  Hybrid LPFG/MEFPI sensor for simultaneous measurement of high-temperature and strain. , 2007 .

[2]  J. Meunier,et al.  Strain and Temperature Sensing Characteristics of Single-Mode–Multimode–Single-Mode Structures , 2009, Journal of Lightwave Technology.

[3]  J. P. Carvalho,et al.  Modal interferometer based on hollow-core photonic crystal fiber for strain and temperature measurement. , 2009, Optics express.

[4]  K. Okamoto,et al.  Polarization-maintaining fibers and their applications , 1986 .

[5]  I. Bennion,et al.  Sensitivity of LPGs in PCFs Fabricated by an Electric Arc to Temperature, Strain, and External Refractive Index , 2007, Journal of Lightwave Technology.

[6]  Jonathan Rigelsford,et al.  Fiber Optic Smart Structures , 2001 .

[7]  Benjamin J. Eggleton,et al.  Ultra-sensitive photonic crystal fiber refractive index sensor , 2009, 2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference.

[8]  Lei Xu,et al.  Simultaneous strain and temperature measurements with fiber Bragg grating written in novel Hi-Bi optical fiber , 2004 .

[9]  Xudong Fan,et al.  On the performance quantification of resonant refractive index sensors. , 2008, Optics express.

[10]  Zuyuan He,et al.  Complete discrimination of strain and temperature using Brillouin frequency shift and birefringence in a polarization-maintaining fiber. , 2009, Optics express.

[11]  Yinian Zhu,et al.  Strain-insensitive and high-temperature long-period gratings inscribed in photonic crystal fiber , 2005 .

[12]  Guoyong Sun,et al.  Simultaneous Temperature and Strain Measurement Using Two Types of High-Birefringence Fibers in Sagnac Loop Mirror , 2007, IEEE Photonics Technology Letters.

[13]  S. Yam,et al.  In-Line Abrupt Taper Optical Fiber Mach–Zehnder Interferometric Strain Sensor , 2009, IEEE Photonics Technology Letters.

[14]  J.L. Santos,et al.  Simultaneous Measurement for Strain and Temperature Based on a Long-Period Grating Combined With a High-Birefringence Fiber Loop Mirror , 2006, IEEE Photonics Technology Letters.

[15]  RI Ring Laser Sensor Based on Concatenating CLF and SMF With One Core-Offset Joint , 2016, IEEE Photonics Technology Letters.

[16]  Deming Liu,et al.  Simultaneous Measurement of Axial Strain and Temperature Based on a Z-Shape Fiber Structure , 2017, IEEE Photonics Journal.

[17]  S. Yam,et al.  Refractive index sensor based on an abrupt taper Michelson interferometer in a single-mode fiber. , 2008, Optics letters.

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

[19]  David E McClelland,et al.  Demonstration of a passive subpicostrain fiber strain sensor. , 2005, Optics letters.

[20]  J. Villatoro,et al.  Temperature-independent strain sensor made from tapered holey optical fiber. , 2006, Optics letters.

[21]  Xiangjun Xin,et al.  Performance Comparison of PS Star-16QAM and PS Square-Shaped 16QAM (Square-16QAM) , 2017, IEEE Photonics Journal.

[22]  Jing Shao,et al.  Simultaneous Measurement of Strain and Temperature Based on Radio-Frequency Demodulation , 2017, IEEE Photonics Technology Letters.

[23]  X. Bao,et al.  Dependence of the brillouin frequency shift on strain and temperature in a photonic crystal fiber. , 2004, Optics letters.

[24]  Kazuro Kageyama,et al.  Dependence of measurement accuracy on the birefringence of PANDA fiber Bragg gratings in distributed simultaneous strain and temperature sensing. , 2017, Optics express.

[25]  Young-Geun Han,et al.  Multiwavelength Raman-fiber-laser-based long-distance remote sensor for simultaneous measurement of strain and temperature. , 2005, Optics letters.

[26]  T. Newson,et al.  Simultaneous temperature and strain measurement with combined spontaneous Raman and Brillouin scattering. , 2005, Optics letters.

[27]  Limin Xiao,et al.  Highly sensitive long-period fiber-grating strain sensor with low temperature sensitivity. , 2006, Optics letters.

[28]  R. Bernini,et al.  Dynamic strain measurement in optical fibers by stimulated Brillouin scattering. , 2009, Optics letters.