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Optics Letters

Optics Letters


  • Vol. 28, Iss. 18 — Sep. 15, 2003
  • pp: 1648–1650

Spectrally scanned, repetitively pulsed erbium-doped fiber laser for spectral and temporal multiplexing of fiber Bragg grating sensors

Xiaoke Wan and Henry F. Taylor  »View Author Affiliations

Optics Letters, Vol. 28, Issue 18, pp. 1648-1650 (2003)

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An erbium-doped fiber laser that emits a series of spectrally scanned pulses is used to monitor an array of fiber Bragg grating (FBG) sensors. The cavity for this Fabry–Perot laser is formed by two spectrally selective reflectors: a rotating mirror–grating combination for scanning the reflectance peak wavelength and a fiber Fabry–Perot interferometer (FFPI) with a periodic reflectance spectrum. During a scan of the rotating mirror, the laser produces a set of Q -switched pulses over the 1522–1568-nm spectral range at each of the FFPI reflectance peak wavelengths. This laser is used to simultaneously demonstrate wavelength-division multiplexing of FBGs with reflectance peaks in different spectral regimes and time-division multiplexing of FBGs with overlapping spectra. The spectral location of the FBG peaks was determined to an accuracy of 1.4 pm.

© 2003 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(230.5750) Optical devices : Resonators

Xiaoke Wan and Henry F. Taylor, "Spectrally scanned, repetitively pulsed erbium-doped fiber laser for spectral and temporal multiplexing of fiber Bragg grating sensors," Opt. Lett. 28, 1648-1650 (2003)

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  4. X. Wan and H. F. Taylor, IEEE Photon Technol. Lett. 15, 188 (2003).
  5. X. Wan and H. F. Taylor, Opt. Lett. 27, 1388 (2002).

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