OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 7 — Mar. 1, 2000
  • pp: 1106–1111

Fiber Bragg Grating Strain Sensor Demodulation with Quadrature Sampling of a Mach-Zehnder Interferometer

Minho Song, Shizhuo Yin, and Paul B. Ruffin  »View Author Affiliations


Applied Optics, Vol. 39, Issue 7, pp. 1106-1111 (2000)
http://dx.doi.org/10.1364/AO.39.001106


View Full Text Article

Acrobat PDF (268 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A simple and highly sensitive phase-demodulation technique is proposed, and its use for a fiber Bragg grating strain sensor is experimentally demonstrated. Sampling a phase-modulated Mach–Zehnder output with controlled time delay produced two quadrature data streams that have relative quadrature phase difference (90°). The Bragg wavelength-dependent phase information is extracted by application of digital arctangent function and phase unwrapping to the quadrature signals. By use of this technique with a reference grating, strain sensing at as much as a 30-kHz sampling rate was obtained with strain resolution of 3.5 microstrains and 6 nanostrains/ Hz in quasi-static and dynamic strain measurements, respectively.

© 2000 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.5060) Instrumentation, measurement, and metrology : Phase modulation

Citation
Minho Song, Shizhuo Yin, and Paul B. Ruffin, "Fiber Bragg Grating Strain Sensor Demodulation with Quadrature Sampling of a Mach-Zehnder Interferometer," Appl. Opt. 39, 1106-1111 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-7-1106


Sort:  Author  |  Year  |  Journal  |  Reset

References

  1. A. Dandridge, A. B. Tveten, and T. G. Giallorenzi, “Homodyne demodulation scheme for fiber optic sensors using phase generated carrier,” IEEE J. Quantum Electron. JQE-18, 1647–1653 (1982).
  2. Y. L. Lo, J. S. Sirkis, and C. C. Chang, “Passive signal processing of in-line fiber etalon sensors for high strain-rate loading,” J. Lightwave Technol. 15, 1578–1585 (1997).
  3. M. Kobayashi, K. Takada, and J. Noda, “Optical-frequency encoder using polarization-maintaining fiber,” J. Lightwave Technol. 8, 1697–1701 (1990).
  4. K. Takada, “High-resolution OFDR with incorporated fiber-optic frequency encoder,” IEEE Photon. Technol. Lett. 4, 1069–1072 (1992).
  5. K. P. Koo, A. B. Tveten, and A. Dandridge, “Passive stabilization scheme for fiber interferometers using (3 × 3) fiber directional couplers,” Appl. Phys. Lett. 41, 616–618 (1982).
  6. D. W. Stowe and T. Y. Hsu, “Demodulation of interferometric sensors using a fiber-optic passive quadrature demodulator,” J. Lightwave Technol. 1, 519–523 (1983).
  7. Y. L. Lo, “In-fiber Bragg grating sensors using interferometric interrogations for passive quadrature signal processing,” IEEE Photon. Technol. Lett. 10, 1003–1005 (1998).
  8. M. Schmidt and N. Furstenau, “Fiber-optic extrinsic Fabry–Perot interferometer sensors with three-wavelength digital phase demodulation,” Opt. Lett. 24, 599–601 (1999).
  9. 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).
  10. B. V. Dorrio and J. L. Fernandez, “Phase-evaluation methods in whole-field optical measurement techniques,” Meas. Sci. Technol. 10, R33–R55 (1999).
  11. R. S. Weis, A. D. Kersey, and T. A. Berkoff, “A four-element fiber grating sensor array with phase-sensitive detection,” IEEE Photon. Technol. Lett. 6, 1469–1471 (1994).
  12. A. D. Kersey, T. A. Berkoff, and W. W. Morey, “Fiber-optic Bragg grating strain sensor with drift-compensated high-resolution interferometric wavelength-shift detection,” Opt. Lett. 18, 72–74 (1993).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited