Polarization-independent high-resolution spectral interrogation of FBGs using a BFBG-CCD array for optical sensing applications

Part of book or chapter of book English OPEN
Simpson, Alexander G. ; Zhou, Kaiming ; Foote, Peter ; Zhang, Lin ; Bennion, Ian (2003)
  • Publisher: SPIE

Optical fibre strain sensors using Fibre Bragg Gratings (FBGs) are poised to play a major role in structural health monitoring in a variety of application from aerospace to civil engineering. At the heart of technology is the optoelectronic instrumentation required to convert optical signals into measurands. Users are demanding compact, lightweight, rugged and low cost solutions. This paper describes development of a new device based on a blazed FBG and CCD array that can potentially meet the above demands. We have shown that this very low cost technique may be used to interrogate a WDM array of sensor gratings with highly accurate and highly repeatable results unaffected by the polarisation state of the radiation. In this paper, we present results showing that sensors may be interrogated with an RMS error of 1.7pm, drift below 0.12pm and dynamic range of up to 65nm.
  • References (14)
    14 references, page 1 of 2

    KO. Hill, Y. Fujii, DC. Johnson, and BS. Kawasaki; “Photosensitivity in optical waveguides: Application to reflection filter fabrication,” Applied Physics Letters, 32(10, 647 (1978) G. Meltz, WW. Morey. W. Glenn; “In-Fibre Bragg grating tap,” in OFC, TuG1 1990 RS. Westbrook, KS. Feder, PI. Reyes, P. Steinvurzel, BJ. Eggleton, RG. Ernst, LA. Reith, and DM. Gill; “Application of fibre Bragg grating filter/tap module to a wavelength-locked low-chirp directly-modulated 10Gb/s Rz transmitter,” in OFC. 2002. Anaheim, California.

    R. Kashyap, R. Wyatt, and RJ. Campbell; “Wideband gain flattened erbium fibre amplifier using a photosensitive fibre blazed grating,” Electronics Letters, 1993. 29(2): pp. 154-156.

    H. Labidi, C. Debarros, R. Letteron, and Riant; “Slanted Bragg grating with ultra-low polarization dependant loss,” in OFC 2002, Anaheim, California.

    Y. Liu, L. Zhang, and I. Bennion; “Fabricating fibre edge filters with arbitrary spectral response based on tilted chirped grating structures,” Meas. Sci. Tech., 1999. 10: p. L1-L3.

    Wagner; “Fibre grating optical spectrum analyser tap,” in ECOC 1997.

    T. Erdogan; “Fibre Grating Spectra,” J. Lightwave Tech., 1997. 15(8): p. 1277-1294.

    T. Erdogan and JE. Spie; “Tilted fibre phase gratings,” Journal of the Optical Society of America A, 1996.

    13(2): p. 296-313.

    KS. Lee and T. Erdogan; “Fibre mode conversion with tilted gratings in an optical fibre,” Journal of the Optical Society of America A, 2001. 18(5): p. 1176-1185.

    KS. Lee and T. Erdogan; “Fibre mode coupling in transmissive and reflective tilted fibre gratings,” Applied Optics, 2000. 39(9): p. 1394-1404.

  • Metrics
    views in OpenAIRE
    views in local repository
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    Aston Publications Explorer - IRUS-UK 0 3
Share - Bookmark