Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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A Fiber Laser Spectrometer Demodulation of Fiber Bragg Grating Sensors for Measurement Linearity Enhancement

  • Kim, Hyunjin (Division of Electronics and Information Engineering, Chonbuk National University) ;
  • Song, Minho (Division of Electronics and Information Engineering, Chonbuk National University)
  • Received : 2013.03.05
  • Accepted : 2013.06.17
  • Published : 2013.08.25
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Abstract

A novel fiber-optic sensor system is suggested in which fiber Bragg grating sensors are demodulated by a wavelength-sweeping fiber laser source and a spectrometer. The spectrometer consists of a diffraction grating and a 512-pixel photo-diode array. The reflected Bragg wavelength information is transformed into spatial intensity distribution on the photo-diode array. The peak locations linearly correspond to the Bragg wavelengths, regardless of the nonlinearities in the wavelength tuning mechanism of the fiber laser. The high power density of the fiber laser enables obtaining high signal-to-noise ratio outputs. The improved demodulation characteristics were experimentally demonstrated with a fiber Bragg grating sensor array with 5 gratings. The sensor outputs were in much more linear fashion compared with the conventional tunable band-pass filter demodulation. Also it showed advantages in signal processing, due to the high level of photo-diode array signals, over the broadband light source system, especially in measurement of fast varying dynamic physical quantities.

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References

  1. B. Culshaw, "Fiber-optic sensing: a historical perspective," J. Lightwave Technol. 26, 1064-1078 (2008). https://doi.org/10.1109/JLT.0082.921915
  2. T. Ackermann, G. Ancell, L. D. Borup, P. B. Eriksen, B. Ernst, F. Groome, M. Lange, C. Mohrlen, A. G. Orths, J. O'Sullivan, and M. de la Torre, "Where the wind blows," IEEE Power and Energy Magazine 7, 65-75 (2009).
  3. C. Obersteiner and M. Saguan, "On the market value of wind power," in Proc. Energy Market 2009, 6th International Conference on the European EEM 2009 (Vienna, Austria, May 2009), pp. 1-6.
  4. H. Sutherland, A. Beattie, B. Hansche, W. Musial, J. Allread, J. Johnson, and M. Summers, The Application of Non-destructive Techniques to the Testing of a Wind Turbine Blade (SAND93-1380, Sandia National Laboratories, Albuquerque, NM 87197, USA, 1994).
  5. Y. Amirat, M. Benbouzid, B. Bensaker, and R. Wamkeue, "Condition monitoring and fault diagnosis in wind energy conversion systems: a review," Electric Machines & Drives Conference, 2007, IEEE International (Antalya, Turkey, May 2007), vol. 2, pp.1434-1439.
  6. A. D. Kersey, M. A. Davis, H. J. Patrick, M. LeBlanc, K. P. Koo, C. G. Askins, M. A. Putnam, and E. J. Friebele, "Fiber grating sensors," J. Lightwave Technol. 15, 1442-1462 (1997). https://doi.org/10.1109/50.618377
  7. A. D. Kersey, T. A. Berkoff, and W. W. Morey, "Multiplexed fiber Bragg grating strain-sensor system with a fiber Fabry-Perot wavelength filter," Opt. Lett. 18, 1370-1372 (1993). https://doi.org/10.1364/OL.18.001370
  8. M. Song, S. Yin, and P. B. Ruffin, "Fiber Bragg grating strain sensor demodulation with quadrature sampling of a Mach-Zehnder interferometer," Appl. Opt. 39, 1106-1111 (2000). https://doi.org/10.1364/AO.39.001106
  9. Z. Jin and M. Song, "Fiber grating sensor array interrogation with time-delayed sampling of a wavelength-scanned fiber laser," IEEE Photon. Technol. Lett. 16, 1924-1926 (2004). https://doi.org/10.1109/LPT.2004.831303
  10. H.-J. Park and M. Song, "Fiber grating sensor interrogation using a double-pass Mach Zehnder interferometer," IEEE Photon. Technol. Lett. 20, 1833-1835 (2008). https://doi.org/10.1109/LPT.2008.2004562
  11. H. Kim and M. Song, "Linear FBG interrogation with a wavelength-swept fiber laser and a volume phase grating spectrometer," Proc. SPIE 7753, 77537Y (2011).
  12. A. Othonos and K. Kalli, Fiber Bragg Gratings: Fundamentals and Applications in Telecommunications and Sensing (Boston, Artech House, USA, 1999), pp. 95-102.
  13. C. A. Palmer and E. G. Loewen, Diffraction Grating Handbook (Newport Corporation, USA, 2005), pp. 20-24.
  14. P. H. Tomlins and R. K. Wang, "Theory, developments and applications of optical coherence tomography," J. Phys. D: Appl. Phys. 38, 2519-2535 (2005). https://doi.org/10.1088/0022-3727/38/15/002
  15. K. Vlachos, K. Zoiros, T. Houbavlis, and H. Avramopoulos, "10${\times}$30 GHz pulse train generation from semiconductor amplifier fiber ring laser," IEEE Photon. Technol. Lett. 12, 25-27 (2000). https://doi.org/10.1109/68.817457
  16. S. H. Yun, C. Boudoux, G. J. Tearney, and B. E. Bouma, "High-speed wavelength-swept semiconductor laser with a polygon-scanner-based wavelength filter," Opt. Lett. 28, 1981-1983 (2003). https://doi.org/10.1364/OL.28.001981
  17. M. Y. Jeon, J. Zhang, Q. Wang, and Z. Chen, "High-speed and wide bandwidth Fourier domain mode-locked wavelength swept laser with multiple SOAs," Opt. Express 16, 2547- 2554 (2008). https://doi.org/10.1364/OE.16.002547

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