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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 21 — Jul. 20, 2006
  • pp: 5066–5072

Refractometric sensor based on a phase-shifted long-period fiber grating

Rosane Falate, Orlando Frazão, Gaspar Rego, José Luís Fabris, and José Luís Santos  »View Author Affiliations

Applied Optics, Vol. 45, Issue 21, pp. 5066-5072 (2006)

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A refractometric sensor based on a phase-shifted long-period fiber grating written by electric-arc discharges is presented. Transmission and reflective configurations for refractive index measurements are studied. It is observed that the reflective topology permits better performance compared with the transmission one, which is the approach normally utilized in the context of long-period fiber sensing. The resolution achieved in the measurement of refractive index enables the application of this sensing head structure in demanding situations, such as the measurement of the level of salinity of water.

© 2006 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(050.5080) Diffraction and gratings : Phase shift
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Diffraction and Gratings

Original Manuscript: December 20, 2005
Revised Manuscript: March 29, 2006
Manuscript Accepted: March 30, 2006

Virtual Issues
Vol. 1, Iss. 8 Virtual Journal for Biomedical Optics

Rosane Falate, Orlando Frazão, Gaspar Rego, José Luís Fabris, and José Luís Santos, "Refractometric sensor based on a phase-shifted long-period fiber grating," Appl. Opt. 45, 5066-5072 (2006)

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  1. V. Bhatia and A. M. Vengsarkar, "Optical fiber long-period grating sensors," Opt. Lett. 21, 692-694 (1996). [CrossRef] [PubMed]
  2. S. W. James and R. P. Tatam, "Optical fiber long-period grating sensors:characteristics and application," Meas. Sci. Technol. 14, R49-61 (2003). [CrossRef]
  3. D. D. Davis, T. K. Gaylord, E. N. Glytsis, S. G. Kosinski, S. C. Mettler, and A. M. Vengsarkar, "Long-period fibre grating fabrication with focused CO2 laser pulses," Electron. Lett. 34, 302-303 (1998). [CrossRef]
  4. G. Rego, O. Okhotnikov, E. Dianov, and V. Sulimov, "High-temperature stability of long-period fiber gratings produced using an electric arc," J. Lightwave Technol. 19, 1574-1579 (2001). [CrossRef]
  5. S. Savin, M. J. K. Digonnet, G. S. Kino, and H. J. Shaw, "Tunable mechanically induced long-period fiber gratings," Opt. Lett. 25, 710-712 (2000). [CrossRef]
  6. Y. Liu, J. A. R. Williams, L. Zhang, and I. Bennion, "Phase shifted and cascaded long-period fiber gratings," Opt. Commun. 164, 27-31 (1999). [CrossRef]
  7. B. J. Eggleton, P. A. Krug, L. Poladian, and F. Ouellette, "Long periodic superstructure Bragg gratings in optical fibres," Electron. Lett. 30, 1620-1622 (1994). [CrossRef]
  8. B. H. Lee, Y. Liu, S. B. Lee, S. S. Choi, and J. N. Jang, "Displacements of the resonant peaks of a long-period fiber grating induced by a change of ambient refractive index," Opt. Lett. 22, 1769-1771 (1997). [CrossRef]
  9. H. J. Patrick, A. D. Kersey, and F. Bucholtz, "Analysis of the response of long period fiber gratings to external index of refraction," J. Lightwave Technol. 16, 1606-1612 (1998). [CrossRef]
  10. X. Shu, X. Zhu, S. Jiang, W. Shi, and D. Huang, "High sensitivity of dual resonant peaks of long-period fibre gratings to surrounding refractive index changes," Electron. Lett. 35, 1580-1581 (1999). [CrossRef]
  11. B. A. L. Gwandu, X. Shu, T. D. P. Allsop, W. Zhang, L. Zhang, and I. Bennion, "Simultaneous refractive index and temperature measurement using cascaded long-period grating in double-cladding fibre," Electron. Lett. 38, 695-696 (2002). [CrossRef]
  12. O. Duhem, J. F. Henninot, and M. Douay, "Study of in fiber Mach-Zehnder interferometer based on two spaced 3-dB long period gratings surrounded by refractive index higher than that of silica," Opt. Commun. 180, 255-262 (2000). [CrossRef]
  13. P. L. Swart, "Long-period grating Michelson refractometric sensor," Meas. Sci. Technol. 15, 1576-1580 (2004). [CrossRef]
  14. H. Ke, K. S. Chiang, and J. H. Peng, "Analysis of phase-shifted long-period fiber gratings," IEEE Photonics Technol. Lett. 10, 1596-1598 (1988). [CrossRef]
  15. G. Humbert and A. Malki, "High performance bandpass filters based on electric arc-induced π-shifted long-period fibre gratings," Electron. Lett. 39, 1506-1507 (2003). [CrossRef]
  16. D. A. Pereira, O. Frazão, and J. L. Santos, "Fibre Bragg grating sensing system for simultaneous measurement of salinity and temperature," Opt. Eng. 43, 299-304 (2004). [CrossRef]
  17. O. Esteban, M. Cruz-Navarrete, A. González-Cano, and E. Bernabeu, "Measurement of the degree of salinity of water with a fiber-optic sensor," Appl. Opt. 38, 5267-5271 (1999). [CrossRef]
  18. X. Quan and E. S. Fry, "Empirical equation for the index of refraction of seawater," Appl. Opt. 34, 3477-3480 (1995). [CrossRef] [PubMed]
  19. G. Rego, R. Falate, H. J. Kalinowski, J. L. Fabris, P. V. S. Marques, H. M. Salgado, and J. L. Santos, "Simultaneous temperature and strain measurements based on arc-induced long-period fiber gratings," in 17th International Conference on Optical Fiber Sensors, M. Voet, R. Willsch, W. Ecke, J. Jones, and B. Culshaw, eds., Proc. SPIE 5855, 679-682 (2005). [CrossRef]

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