Fiber Bragg grating sensor interrogation system using a CCD side detection method with superimposed blazed gratings

K. Zhou*, A.G. Simpson, X. Chen, L. Zhang, I. Bennion

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

We present, for the first time to our knowledge, experimental evidence showing that superimposed blazed fiber Bragg gratings may be fabricated and used to extend the dynamic range of a grating-based spectrometer. Blazed gratings of 4° and 8° were superimposed in germanosilicate fiber by ultraviolet inscription and used in conjunction with a coated charged-coupled device array to interrogate a wavelength-division-multiplexing sensor array. We show that the system can be used to monitor strain and temperature sensors simultaneously with an employable bandwidth which is extendedable to 70 nm.

Original languageEnglish
Pages (from-to)1549-1551
Number of pages3
JournalIEEE Photonics Technology Letters
Volume16
Issue number6
DOIs
Publication statusPublished - Jun 2004

Fingerprint

interrogation
Diffraction gratings
Fiber Bragg gratings
Charge coupled devices
Bragg gratings
charge coupled devices
gratings
fibers
sensors
Sensors
Sensor arrays
temperature sensors
Temperature sensors
wavelength division multiplexing
Wavelength division multiplexing
dynamic range
Spectrometers
spectrometers
bandwidth
Bandwidth

Keywords

  • fiber gratings
  • optical coupling
  • optical fiber radiation effect
  • sensors
  • wavelength-division multiplexing (WDM)

Cite this

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abstract = "We present, for the first time to our knowledge, experimental evidence showing that superimposed blazed fiber Bragg gratings may be fabricated and used to extend the dynamic range of a grating-based spectrometer. Blazed gratings of 4° and 8° were superimposed in germanosilicate fiber by ultraviolet inscription and used in conjunction with a coated charged-coupled device array to interrogate a wavelength-division-multiplexing sensor array. We show that the system can be used to monitor strain and temperature sensors simultaneously with an employable bandwidth which is extendedable to 70 nm.",
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Fiber Bragg grating sensor interrogation system using a CCD side detection method with superimposed blazed gratings. / Zhou, K.; Simpson, A.G.; Chen, X.; Zhang, L.; Bennion, I.

In: IEEE Photonics Technology Letters, Vol. 16, No. 6, 06.2004, p. 1549-1551.

Research output: Contribution to journalArticle

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AU - Bennion, I.

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KW - wavelength-division multiplexing (WDM)

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