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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 28 — Oct. 1, 2007
  • pp: 6945–6952

Spectral behavior in thinned long period gratings: effects of fiber diameter on refractive index sensitivity

Agostino Iadicicco, Stefania Campopiano, Michele Giordano, and Andrea Cusano  »View Author Affiliations

Applied Optics, Vol. 46, Issue 28, pp. 6945-6952 (2007)

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We report the experimental investigation of the sensitivity characteristics to the surrounding refractive index (SRI) in thinned long period gratings (LPGs) for a wide range of fiber diameters and different low-orders cladding modes. Wet chemical etching combined with microscopic and spectral analysis allow us to experimentally retrieve the SRI sensitivity characteristics of thinned LPGs. The obtained results allow us to identify accurately the dependence of the sensitivity characteristics on the fiber radius, taking into account the SRI range and the order mode. This provides a useful tool to identify the thinned structure able to fulfill the sensitivity requirements by maintaining an acceptable robustness level.

© 2007 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2370) Fiber optics and optical communications : Fiber optics sensors

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: March 28, 2007
Revised Manuscript: July 23, 2007
Manuscript Accepted: August 4, 2007
Published: September 24, 2007

Agostino Iadicicco, Stefania Campopiano, Michele Giordano, and Andrea Cusano, "Spectral behavior in thinned long period gratings: effects of fiber diameter on refractive index sensitivity," Appl. Opt. 46, 6945-6952 (2007)

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  1. X. Shu, L. Zhang, and I. Bennion, "Sensitivity characteristics of long period fiber gratings," J. Lightwave Technol. 20, 255-266 (2002). [CrossRef]
  2. B. J. Eggleton, R. E. Slusher, J. B. Judkins, J. B. Stark, and A. M. Vengsarkar, "All-optical switching in long period fiber gratings," Opt. Lett. 22, 883-885 (1997). [CrossRef] [PubMed]
  3. Y. J. Rao, Y. P. Wang, Z. L. Ran, and T. Zhu, "Novel fiber-optic sensors based on long-period fiber gratings written by high-frequency CO2 laser pulses," J. Lightwave Technol. 21, 1320-1327 (2003). [CrossRef]
  4. S. Nam, C. Zhan, J. Lee, C. Hahn, K. Reichard, P. Ruffin, K. L. Deng, and S. Yin, "Bend-insensitive ultrashort long-period gratings by the electric arc method and their applications to harsh environment sensing and communication," Opt. Express 13, 731-737 (2005). [CrossRef] [PubMed]
  5. 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]
  6. T. Allsop, R. Reeves, D. J. Webb, and I. Bennion, "A high sensitivity refractometer based upon a long period grating Mach-Zehnder interferometer," Rev. Sci. Instrum. 73, 1702-1705 (2002). [CrossRef]
  7. A. Cusano, P. Pilla, L. Contessa, A. Iadicicco, S. Campopiano, A. Cutolo, and M. Giordano, "High sensitivity optical chemo-sensor based on coated long period gratings for sub-ppm chemical detection in water," Appl. Phys. Lett. 87, 234105 (2005). [CrossRef]
  8. A. Cusano, A. Iadicicco, P. Pilla, L. Contessa, S. Campopiano, A. Cutolo, M. Giordano, and G. Guerra, "Coated long period fiber gratings as high sensitivity opto-chemical sensors," J. Lightwave Technol. 24, 1776-1786 (2006). [CrossRef]
  9. I. Del Villar, I. R. Matias, F. J. Arregui, and P. Lalanne, "Optimization of sensitivity in long period fiber gratings with overlay deposition," Opt. Express 13, 56-69 (2005). [CrossRef] [PubMed]
  10. A. Cusano, A. Iadicicco, P. Pilla, L. Contessa, S. Campopiano, A. Cutolo, and M. Giordano, "Cladding modes reorganization in high-refractive-index-coated long period gratings: effects on the refractive index sensitivity," Opt. Lett. 30, 2536-2538 (2005). [CrossRef] [PubMed]
  11. A. Cusano, A. Iadicicco, P. Pilla, L. Contessa, S. Campopiano, A. Cutolo, and M. Giordano, "Mode transition in high-refractive-index-coated long period gratings," Opt. Express 14, 19-34 (2006). [CrossRef] [PubMed]
  12. A. Cusano, A. Iadicicco, P. Pilla, A. Cutolo, M. Giordano, and S. Campopiano, "Sensitivity characteristics in nano-sized coated long period gratings," Appl. Phys. Lett. 89, 201116 (2006). [CrossRef]
  13. S. W. James, N. D. Rees, G. J. Ashwell, and R. P. Tatam, "Optical fiber long-period gratings with Langmuir-Blodgett thin-film overlays," Opt. Lett. 27, 686-688 (2002). [CrossRef]
  14. S. Khaliq, S. W. James, and R. P. Tatam, "Enhanced sensitivity fibre optic long period grating temperature sensor," Meas. Sci. Technol. 13, 792-795 (2002). [CrossRef]
  15. S. A. Vasiliev, E. M. Dianov, D. Varelas, H. G. Limberger, and R. P. Salathé, "Postfabrication resonance peak positioning of long-period cladding-mode-coupled gratings," Opt. Lett. 21, 1830-1832 (1996). [CrossRef] [PubMed]
  16. Y. Jeong, S. Kim, J. Kwon, N. Park, and B. Lee, "Control of the characteristics of a long-period grating by cladding etching," Appl. Opt. 39, 2038-2042 (2000). [CrossRef]
  17. K. Zhou, H. Liu, and X. Hu, "Tuning the resonant wavelength of long period fiber gratings by etching the fiber's cladding," Opt. Commun. 197, 295-299 (2001). [CrossRef]
  18. S. Yin, K. W. Chung, and X. Zhu, "A novel all-optic tunable long-period grating using a unique double-cladding layer," Opt. Commun. 196, 181-186 (2001). [CrossRef]
  19. S. Yin, K. W. Chung, and X. Zhu, "A highly sensitive long period grating based tunable filter using a unique double-cladding layer structure," Opt. Commun. 188, 301-305 (2001). [CrossRef]
  20. K. Chiang, Y. Liu, M. Ng, and X. Dong, "Analysis of etched long-period fiber grating and its response to external refractive index," Electron. Lett. 36, 966-967 (2000). [CrossRef]
  21. X. Chen, K. Zhou, L. Zhang, and I. Bennion, "Optical chemsensors utilizing long-period fiber gratings UV-inscribed in D-fiber with enhanced sensitivity through cladding etching," IEEE Photon. Technol. Lett. 16, 1352-1354 (2004). [CrossRef]
  22. E. Anemogiannis, E. N. Glytsis, and T. K. Gaylord, "Transmission characteristics of long-period fiber gratings having arbitrary azimuthal/radial refractive index variations," J. Lightwave Technol. 21, 218-227 (2003). [CrossRef]
  23. A. Iadicicco, A. Cusano, A. Cutolo, R. Bernini, and M. Giordano, "Thinned fiber Bragg gratings as high sensitivity refractive index sensor," IEEE Photon. Technol. Lett. 16, 1149-1151 (2004). [CrossRef]
  24. S. Timonshenko, Strength of Materials, Part 1 and Part 2 (Krieger, 1983).
  25. H.-J. Yoon and C.-G. Kim, "The mechanical strength of fiber Bragg gratings under controlled UV laser conditions," Smart Mater. Struct. 16, 1315-1319 (2007). [CrossRef]

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