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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 5 — Mar. 1, 2010
  • pp: 4396–4410

Coarse WDM networking of self-referenced fiber-optic intensity sensors with reconfigurable characteristics

D. S. Montero, C. Vázquez, J. M. Baptista, J. L. Santos, and J. Montalvo  »View Author Affiliations


Optics Express, Vol. 18, Issue 5, pp. 4396-4410 (2010)
http://dx.doi.org/10.1364/OE.18.004396


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Abstract

A CWDM network operating in reflective configuration for multiplexing remote Radio-Frequency (RF) self-referenced fiber-optic intensity sensors is analyzed and experimentally investigated. In the described approach, the use of fiber Bragg gratings as spectral selective mirrors allows to implement delay lines in the electrical domain, achieving more compact sensor-heads and easy-reconfigurable sensing points. Two measurement parameters for the sensing heads are defined and comparatively studied in terms of design parameters, linearity, sensitivity and resolution. The proposed sensor configuration is modeled following the Z-transform formalism, which permits an easy analysis of the system frequency response. Experimental results are presented, showing the characterization of the network performance and considering the properties of sensor self-referencing as well as sensor crosstalk.

© 2010 OSA

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4250) Fiber optics and optical communications : Networks
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(280.4991) Remote sensing and sensors : Passive remote sensing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 4, 2009
Revised Manuscript: January 25, 2010
Manuscript Accepted: January 28, 2010
Published: February 18, 2010

Citation
D. S. Montero, C. Vázquez, J. M. Baptista, J. L. Santos, and J. Montalvo, "Coarse WDM networking of self-referenced fiber-optic intensity sensors with reconfigurable characteristics," Opt. Express 18, 4396-4410 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-5-4396


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References

  1. O. Frazao, L. M. Marques, S. Santos, J. M. Baptista, and J. L. Santos, “Simultaneous measurement for strain and temperature based on a long-period grating combined with a high-birefrigence fiber loop mirror,” IEEE Photon. Technol. Lett. 18(22), 2407–2409 (2006). [CrossRef]
  2. Y. Zhu and A. Wang, “Miniature fibre-optic pressure sensor,” IEEE Photon. Technol. Lett. 17(2), 447–449 (2005). [CrossRef]
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  5. J. Montalvo, C. Vázquez, and D. S. Montero, “CWDM self-referencing sensor network based on ring resonators in reflective configuration,” Opt. Express 14(11), 4601–4610 (2006). [CrossRef] [PubMed]
  6. J. Montalvo, O. Frazao, J. L. Santos, C. Vázquez, and J. M. Baptista, “Radio-frequency self-referencing technique with enhanced sensitivity for coarse WDM fiber optic intensity sensors,” J. Lightwave Technol. 27(5), 475–482 (2009). [CrossRef]
  7. D. S. Montero, C. Vázquez, I. Möllers, J. Arrúe, and D. Jäger, “A self-referencing intensity based polymer optical fiber sensor for liquid detection,” Sensors 9(8), 6446–6455 (2009). [CrossRef]
  8. J. M. Baptista, J. L. Santos, and A. S. Lage, “Mach-Zender and Michelson topologies for self-referencing fiber-optic intensity sensors,” Opt. Eng. 39(6), 1636–1644 (2000). [CrossRef]
  9. J. M. Baptista, S. Abad, G. M. Rego, L. A. Ferreira, and J. L. Santos, “Wavelength multiplexing of frequency- based self-referenced fiber optic intensity sensors,” Opt. Eng. 43(3), 702–707 (2004). [CrossRef]
  10. J. M. Baptista, J. L. Santos, and A. S. Lage, “Self-referenced fibre optic intensity sensor based on a multiple beam Sagnac topology,” Opt. Commun. 181(4-6), 287–294 (2000). [CrossRef]
  11. C. Vázquez, J. Montalvo, and P. C. Lallana, “Radio-frequency ring resonators for self-referencing fiber-optic intensity sensors,” Opt. Eng. Lett. 44, 1–2 (2005).
  12. C. Vázquez, J. Montalvo, D. S. Montero, and J. M. S. Pena, “Self-referencing fiber-optic intensity sensors using ring resonators and fiber Bragg gratings,” IEEE Photon. Technol. Lett. 18(22), 2374–2376 (2006). [CrossRef]
  13. S. Abad, M. López-Amo, F. M. Araújo, L. A. Ferreira, and J. L. Santos, “Fiber Bragg grating-based self-referencing technique for wavelength-multiplexed intensity sensors,” Opt. Lett. 27(4), 222–224 (2002). [CrossRef]
  14. J. Montalvo, F. M. Araújo, L. A. Ferreira, C. Vázquez, and J. M. Baptista, “Electrical FIR filter with optical coefficients for self-referencing WDM intensity sensors,” IEEE Photon. Technol. Lett. 20(1), 45–47 (2008). [CrossRef]

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