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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 6 — Mar. 25, 2013
  • pp: 7171–7179

Time-frequency analysis of long fiber Bragg gratings with low reflectivity

Juan Sancho, Sanghoon Chin, David Barrera, Salvador Sales, and Luc Thévenaz  »View Author Affiliations

Optics Express, Vol. 21, Issue 6, pp. 7171-7179 (2013)

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A new technique to investigate the spatial distribution of the reflection spectrum along fabricated long weak fiber Bragg gratings (FBG) is experimentally demonstrated, together with its potential applications for distributed fiber sensing and broadband signal processing. A short pulsed coherent light signal is launched into a FBG and the signal frequency is scanned through the FBG reflection spectrum. When the pulse duration is set much shorter than the transit time through the grating a time-resolved reflected signal can be obtained for each signal frequency. It informs about the distribution of the refractive index periodic perturbation along the entire FBG length, hence the uniformity or frequency chirp information of the fabricated FBG. This technique has been implemented to demonstrate a distributed temperature sensing system with high spatial resolution and to also realize a robust all-fiber tunable delay line for broadband signals.

© 2013 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.1480) Optical devices : Bragg reflectors
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 8, 2013
Revised Manuscript: March 4, 2013
Manuscript Accepted: March 5, 2013
Published: March 14, 2013

Juan Sancho, Sanghoon Chin, David Barrera, Salvador Sales, and Luc Thévenaz, "Time-frequency analysis of long fiber Bragg gratings with low reflectivity," Opt. Express 21, 7171-7179 (2013)

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  1. 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(8), 1442–1463 (1997). [CrossRef]
  2. W. F. Liu, I. M. Liu, L. W. Chung, D. W. Huang, and C. C. Yang, “Acoustic-induced switching of the reflection wavelength in a fiber Bragg grating,” Opt. Lett.25(18), 1319–1321 (2000). [CrossRef] [PubMed]
  3. J. Azaña, “Proposal of a uniform fiber Bragg grating as an ultrafast all-optical integrator,” Opt. Lett.33(1), 4–6 (2008). [CrossRef] [PubMed]
  4. I. Littler, M. Rochette, and B. Eggleton, “Adjustable bandwidth dispersionless bandpass FBG optical filter,” Opt. Express13(9), 3397–3407 (2005). [CrossRef] [PubMed]
  5. M. Volanthen, H. Geiger, and J. P. Dakin, “Distributed grating sensors using low-coherence reflectometry,” J. Lightwave Technol.15(11), 2076–2082 (1997). [CrossRef]
  6. H. Murayama, H. Igawa, K. Kageyama, K. Ohta, I. Ohsawa, K. Uzawa, M. Kanai, T. Kasai, and I. Yamaguchi, “Distributed strain measurement with high spatial resolution using fiber Bragg gratings and optical frequency domain reflectometry,” in Optical Fiber Sensors, OSA Technical Digest (CD) (Optical Society of America, 2006), paper ThE40.
  7. K. Hotate and K. Kajiwara, “Proposal and experimental verification of Bragg wavelength distribution measurement within a long-length FBG by synthesis of optical coherence function,” Opt. Express16(11), 7881–7887 (2008). [CrossRef] [PubMed]
  8. L. R. Chen, S. D. Benjamin, P. W. E. Smith, and J. E. Sipe, “Ultrashort pulse reflection from fiber gratings: a numerical investigation,” J. Lightwave Technol.15(8), 1503–1512 (1997). [CrossRef]
  9. J. Azaña and M. A. Muriel, “Study of optical pulses-fiber gratings interaction by means of joint time-frequency signal representations,” J. Lightwave Technol.21(11), 2931–2941 (2003). [CrossRef]
  10. N. J. Doran and D. Wood, “Nonlinear-optical loop mirror,” Opt. Lett.13(1), 56–58 (1988). [CrossRef] [PubMed]
  11. L. Thévenaz and M. A. Soto, “Rating the performance of a Brillouin distributed fiber sensor,” 22ndOFS2012, Proc. SPIE 8421, 8421A7 (2012).
  12. S. Chin, N. Primerov, and L. Thevenaz, “Sub-centimeter spatial resolution in distributed fiber sensing based on dynamic Brillouin grating in optical fibers,” Sensors Journal, IEEE12(1), 189–194 (2012). [CrossRef]
  13. K. Y. Song, Z. He, and K. Hotate, “Distributed strain measurement with millimeter-order spatial resolution based on Brillouin optical correlation domain analysis,” Opt. Lett.31(17), 2526–2528 (2006). [CrossRef] [PubMed]
  14. L. Thevenaz, S. Foaleng Mafang, and J. Lin, “Impact of pump depletion on the determination of the Brillouin gain frequency in distributed fiber sensors,” Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775322 (2011). [CrossRef]
  15. M. Lancry and B. Poumellec, “UV laser processing and multiphoton absorption processes in optical telecommunication fiber materials,” Phys. Rep.523(4), 207–229 (2013). [CrossRef]

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