Resonant cavity time-division-multiplexed fiber Bragg grating sensor interrogator

Glynn D. Lloyd*, Lorna A. Everall, Kate Sugden, Ian Bennion

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

The first resonant-cavity time-division-multiplexed (TDM) fiber Bragg grating sensor interrogation system is reported. This novel design uses a pulsed semiconductor optical amplifier in a cyclic manner to function as the optical source, amplifier, and modulator. Compatible with a range of standard wavelength detection techniques, this optically gated TDM system allows interrogation of low reflectivity "commodity" sensors spaced just 2 m apart, using a single active component. Results demonstrate an exceptional optical signal-to-noise ratio of 36 dB, a peak signal power of over +7 dBm, and no measurable crosstalk between sensors. Temperature tuning shows that the system is fully stable with a highly linear response. © 2004 IEEE.

Original languageEnglish
Pages (from-to)2323-2325
Number of pages3
JournalIEEE Photonics Technology Letters
Volume16
Issue number10
Early online date27 Sep 2004
DOIs
Publication statusPublished - Oct 2004

Fingerprint

Cavity resonators
cavity resonators
Fiber Bragg gratings
Bragg gratings
division
interrogation
fibers
sensors
Sensors
commodities
Semiconductor optical amplifiers
Crosstalk
crosstalk
light amplifiers
Modulators
Light sources
optical communication
modulators
Signal to noise ratio
signal to noise ratios

Keywords

  • fiber bragg gratings (fbgs)
  • optical fiber sensing
  • resonant cavity
  • semiconductor optical amplifier (soa)
  • time-division multiplexing (tdm)

Cite this

Lloyd, Glynn D. ; Everall, Lorna A. ; Sugden, Kate ; Bennion, Ian. / Resonant cavity time-division-multiplexed fiber Bragg grating sensor interrogator. In: IEEE Photonics Technology Letters. 2004 ; Vol. 16, No. 10. pp. 2323-2325.
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Resonant cavity time-division-multiplexed fiber Bragg grating sensor interrogator. / Lloyd, Glynn D.; Everall, Lorna A.; Sugden, Kate; Bennion, Ian.

In: IEEE Photonics Technology Letters, Vol. 16, No. 10, 10.2004, p. 2323-2325.

Research output: Contribution to journalArticle

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