Simultaneous Vector Bend and Temperature Sensing Based on a Polymer and Silica Optical Fibre Grating Pair

The bending response of polymer optical fibre Bragg grating (POFBG) and silica optical fibre Bragg grating (SOFBG) mounted on a brass beam have been systematically studied and compared. The results indicate that POFBG has higher (almost twice as much) bend sensitivity than SOFBG. Based on the difference between the bend and temperature sensitivity of POFBG and SOFBG, a new method of measuring vector bend and temperature simultaneously was proposed by using a hybrid sensor head with series connection of one POFBG and one SOFBG with different Bragg wavelengths. It provides high sensitivity and resolution for sensing bend and temperature changes simultaneously and independently. The proposed sensor can find some applications in the fields where high sensitivity for both bend and temperature measurements are required.

[1]  Patrice Mégret,et al.  D-shaped Polymer Optical Fiber Bragg Grating for Bend Sensing , 2015 .

[2]  Maryanne C. J. Large,et al.  The role of viscoelastic properties in strain testing using microstructured polymer optical fibres (mPOF) , 2009 .

[3]  Gang-Ding Peng,et al.  Highly Sensitive Bend Sensor Based on Bragg Grating in Eccentric Core Polymer Fiber , 2010, IEEE Photonics Technology Letters.

[4]  Kyriacos Kalli,et al.  Fiber Bragg Gratings: Fundamentals and Applications in Telecommunications and Sensing , 2000 .

[5]  Kyriacos Kalli,et al.  Femtosecond laser inscribed Bragg grating arrays in long lengths of polymer optical fibres; a route to practical sensing with POF , 2016 .

[6]  David J. Webb,et al.  Fibre Bragg grating sensors in polymer optical fibres , 2015 .

[7]  Christos Markos,et al.  Zeonex microstructured polymer optical fiber: fabrication friendly fibers for high temperature and humidity insensitive Bragg grating sensing , 2017 .

[8]  Patrice Megret,et al.  Simultaneous bend and temperature sensor using tilted FBG , 2005, International Conference on Optical Fibre Sensors.

[9]  Libo Yuan,et al.  Simultaneous measurement of temperature and bend by using an eccentric core fiber Bragg grating cascaded with a Fabry-Perot cavity , 2017, 2017 25th Optical Fiber Sensors Conference (OFS).

[10]  Jie Zheng,et al.  Refractive index sensor based on multi-mode plastic optical fiber with long period grating , 2017, Optics + Optoelectronics.

[11]  Li Wang,et al.  Simultaneous directional bending and temperature measurement with overlapping long period grating and fiber Bragg grating structure , 2014 .

[12]  G. Peng,et al.  Thermal tuning of polymer optical fiber Bragg gratings , 2001, IEEE Photonics Technology Letters.

[13]  Kyriacos Kalli,et al.  Pressure Dependence of Fiber Bragg Grating Inscribed in Perfluorinated Polymer Fiber , 2017, IEEE Photonics Technology Letters.

[14]  Christos Markos,et al.  Low Loss Polycarbonate Polymer Optical Fiber for High Temperature FBG Humidity Sensing , 2017, IEEE Photonics Technology Letters.

[15]  Gang-Ding Peng,et al.  Experimental Study and Analysis of a Polymer Fiber Bragg Grating Embedded in a Composite Material , 2014, Journal of Lightwave Technology.

[16]  K. Hill,et al.  Fiber Bragg grating technology fundamentals and overview , 1997 .

[17]  Christos Markos,et al.  Zeonex-PMMA microstructured polymer optical FBGs for simultaneous humidity and temperature sensing. , 2017, Optics letters.

[18]  Gang-Ding Peng,et al.  High Sensitivity Force and Pressure Measurements Using Etched Singlemode Polymer Fiber Bragg Gratings , 2013, IEEE Sensors Journal.

[19]  Gang-Ding Peng,et al.  Tensile strain characterization of polymer optical fibre Bragg gratings , 2005 .

[20]  S. James,et al.  Simultaneous temperature and bend sensing with long-period fiber gratings. , 2000, Optics letters.

[21]  Bing Zhu,et al.  High-sensitivity temperature sensor based on Bragg grating in BDK-doped photosensitive polymer optical fiber , 2011 .

[22]  Gang-Ding Peng,et al.  High Intrinsic Sensitivity Etched Polymer Fiber Bragg Grating Pair for Simultaneous Strain and Temperature Measurements , 2016, IEEE Sensors Journal.

[23]  Young-Geun Han,et al.  Discrimination of bending and temperature sensitivities with phase-shifted long-period fiber gratings depending on initial coupling strength. , 2004, Optics express.

[24]  Gang-Ding Peng,et al.  Vector bend sensing based on polymer and silica fiber Bragg gratings , 2017, 2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR).

[25]  R. Kashyap.  Fiber Bragg Gratings , 1999 .

[26]  C. Trono,et al.  Curved elastic beam with opposed fiber-Bragg gratings for measurement of large displacements with temperature compensation , 2005, IEEE Sensors Journal.

[27]  Yongqiang Wang,et al.  Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG , 2017, Sensors.

[28]  Gang-Ding Peng,et al.  Bragg grating in a polymer optical fibre for strain, bend and temperature sensing , 2010 .

[29]  Patrice Mégret,et al.  Polarization effects in polymer FBGs: study and use for transverse force sensing. , 2015, Optics express.

[30]  Gang-Ding Peng,et al.  High-sensitivity stress sensor based on Bragg grating in BDK-doped photosensitive polymer optical fiber , 2012, Asia Pacific Optical Sensors Conference.

[31]  Lijuan Cheng,et al.  Fiber Bragg grating sensors , 2010 .

[32]  Gang-Ding Peng,et al.  Strain and temperature sensor using a combination of polymer and silica fibre Bragg gratings , 2003 .

[33]  Gerald Meltz,et al.  Fiber Optic Bragg Grating Sensors , 1990, Other Conferences.

[34]  D. J. Webb,et al.  Graphene-Based D-Shaped Polymer FBG for Highly Sensitive Erythrocyte Detection , 2015, IEEE Photonics Technology Letters.

[35]  Gang-Ding Peng,et al.  Fabrication of Polymer Optical Fibre (POF) Gratings , 2017, Sensors.

[36]  Gang-Ding Peng,et al.  Polymer optical fiber sensing , 2002, SPIE/COS Photonics Asia.

[37]  Umesh Tiwari,et al.  Fiber grating sensors in medicine: Current and emerging applications , 2011 .

[38]  Tingyun Wang,et al.  Simultaneous directional curvature and temperature sensor based on a tilted few-mode fiber Bragg grating. , 2018, Applied optics.