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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 9 — Aug. 28, 2012

High-speed and high-sensitivity displacement measurement with phase-locked low-coherence interferometry

Lazo M. Manojlović, Miloš B. Živanov, Miloš P. Slankamenac, Jovan S. Bajić, and Dragan Z. Stupar  »View Author Affiliations

Applied Optics, Vol. 51, Issue 19, pp. 4333-4342 (2012)

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A novel high-speed and high-sensitivity displacement measurement sensing system, based on the phase-locked low-coherence interferometry, is presented. The sensing system is realized by comprising the Michelson fiber-optic interferometer. In order to obtain quadrature signals at the interferometer outputs, a 3×3 fused silica fiber-optic directional coupler is used. Therefore, the usage of the interferometer phase modulation as well as the usage of the lock-in amplification has been avoided. In this way, the speed of such a realized sensing system is significantly increased in comparison with the standard phase-locked interferometric systems that can be found elsewhere in the literature. The bandwidth of the realized sensing system is limited by the first resonance frequency of the used piezo actuator to 4.6 kHz. The estimated noise floor in the displacement measurement is approximately 180pm/Hz.

© 2012 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 13, 2012
Revised Manuscript: March 17, 2012
Manuscript Accepted: April 11, 2012
Published: June 25, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Lazo M. Manojlović, Miloš B. Živanov, Miloš P. Slankamenac, Jovan S. Bajić, and Dragan Z. Stupar, "High-speed and high-sensitivity displacement measurement with phase-locked low-coherence interferometry," Appl. Opt. 51, 4333-4342 (2012)

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  1. A. V. Zvyagin, I. Eix, and D. D. Sampson, “High-speed, high-sensitivity, gated surface profiling with closed-loop optical coherence topography,” Appl. Opt. 41, 2179–2184 (2002). [CrossRef]
  2. T. Suzuki, O. Sasaki, K. Higuchi, and T. Maruyama, “Phase-locked laser diode interferometer: high-speed feedback control system,” Appl. Opt. 30, 3622–3626 (1991). [CrossRef]
  3. D. C. Leiner, “Real-time phase microscopy using a phase-lock interferometer,” Rev. Sci. Instrum. 49, 1702–1705(1978). [CrossRef]
  4. J.-Y. Liu, I. Yamaguchi, J.-I. Kato, and T. Nakajima, “Real-time surface shape measurement by an active interferometer,” Opt. Rev. 4, 216–220 (1997). [CrossRef]
  5. J. L. Lauer and S. S. Fung, “Surface topographical changes measured by phase-locked interferometry,” NASA Contract. Rep. 3757 (NASA, 1984).
  6. L. M. Manojlović, “A simple white-light fiber-optic interferometric sensing system for absolute position measurement,” Opt. Laser Eng. 48, 486–490 (2010). [CrossRef]
  7. S. K. Sheem, “Optical fiber interferometer with [3×3] directional coupler: analysis,” J. Appl. Phys. 52, 3865–3872 (1981). [CrossRef]
  8. R. G. Priest, “Analysis of fiber interferometer utilizing 3×3 fiber coupler,” IEEE Trans. Microw. Theory Tech. MTT-30, 1589–1591 (1982). [CrossRef]
  9. K. P. Koo, A. B. Tvente, and A. Dandridge, “Passive stabilization scheme for fiber interferometers using (3×3) fiber directional coupler,” Appl. Phys. Lett. 41, 616–618(1982). [CrossRef]
  10. Z. Zhao, M. S. Demokan, and M. MacAlpine, “Improved demodulation scheme for fiber optic interferometers using an asymetric 3×3 coupler,” J. Lightwave Technol. 15, 2059–2068 (1997). [CrossRef]
  11. L. M. Manojlović, “A novel common path interferometric technique for vibration measurement based on two fiber-optic couplers,” IEEE Sens. J. 11, 1541–1547 (2011). [CrossRef]
  12. M. C. Tomic, J. M. Elazar, and Z. V. Djinovic, “Low-coherence interferometric method for measurement of displacement based on a 3×3 fibre-optic directional coupler,” J. Opt. A: Pure Appl. Opt. 4, S381–S386 (2002). [CrossRef]
  13. Z. Djinovic, M. Tomic, and C. Gamauf, “Fiber-optic interferometric sensor of magnetic field for structural health monitoring,” Procedia Eng. 5, 1103–1106 (2010). [CrossRef]
  14. C. W. de Silva, Modeling and Control of Engineering Systems (CRC, 2009).
  15. A. Visioli, Practical PID Control (Springer-Verlag, 2006).

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