Polarimetric multilongitudinal‐mode distributed Bragg reflector fiber laser sensor for strain measurement

A polarimetric multilongitudinal-mode distributed Bragg reflector fiber laser sensor is proposed and experimentally demonstrated. We have theoretically analyzed the mode beat mechanism of this laser sensor, which is verified by the experimental observation, and its application in strain measurement has also been studied. Experimental results indicate that both of the longitudinal mode beat (LMB) and birefringence-induced polarization mode beat signals have linear strain dependence, and the coefficients of determination reach 0.9991 and 0.9908, respectively. One possible way to improve the sensitivity of LMB-based sensing has been investigated as well. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2559–2563, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24671

[1]  Deming Liu,et al.  Experimental Demonstration of Multipoint Temperature Warning Sensor Using a Multichannel Matched Fiber Bragg Grating , 2008, IEEE Photonics Technology Letters.

[2]  David N. Payne,et al.  Variation of pulse delay with stress and temperature in jacketed and unjacketed optical fibres , 1979 .

[3]  Hao Zhang,et al.  Temperature-independent FBG pressure sensor with high sensitivity , 2007 .

[4]  Wei Jin,et al.  Multi-point strain measurement of composite-bonded concrete materials with a RF-band FMCW multiplexed FBG sensor array , 2000 .

[5]  Rao Yunjiang,et al.  Simultaneous Static Strain, Temperature and Vibration Measurement Using an Integrated FBG/EFPI Sensor , 2001 .

[6]  M Ibsen,et al.  Polarimetric distributed feedback fiber laser sensor for simultaneous strain and temperature measurements. , 1999, Applied optics.

[7]  Bai-Ou Guan,et al.  Distributed bragg-reflector fiber-laser sensor for lateral force measurement , 2007, 2007 Asia Optical Fiber Communication and Optoelectronics Conference.

[8]  P. Pérez-Millán,et al.  Temperature sensor based on the power reflected by a Bragg grating in a tapered fiber. , 2004, Applied optics.

[9]  H. Chan,et al.  Ultrasonic hydrophone based on distributed Bragg reflector fiber laser , 2005, IEEE Photonics Technology Letters.

[10]  Yunjiang Rao,et al.  A FBG sensor system with cascaded LPFGs and Music algorithm for dynamic strain measurement , 2007 .

[11]  S H Yun,et al.  Frequency-division-multiplexed polarimetric fiber laser current-sensor array. , 1999, Optics letters.

[12]  J. J. Carr,et al.  Refractive index measurements on single-mode fiber as functions of product parameters, tensile stress, and temperature , 1990 .

[13]  W.T. Zhang,et al.  Ultrathin FBG Pressure Sensor With Enhanced Responsivity , 2007, IEEE Photonics Technology Letters.

[14]  Andreas Frank,et al.  Polarimetric fiber laser sensor for hydrostatic pressure. , 2004, Applied optics.