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

Glynn D. Lloyd; Lorna A. Everall; Kate Sugden; Ian Bennion

doi:10.1109/LPT.2004.834849

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 journal › Article › peer-review

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 language	English
Pages (from-to)	2323-2325
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	16
Issue number	10
Early online date	27 Sept 2004
DOIs	https://doi.org/10.1109/LPT.2004.834849
Publication status	Published - Oct 2004

Keywords

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

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10.1109/LPT.2004.834849

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title = "Resonant cavity time-division-multiplexed fiber Bragg grating sensor interrogator",

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. {\textcopyright} 2004 IEEE.",

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AU - Lloyd, Glynn D.

AU - Everall, Lorna A.

AU - Sugden, Kate

AU - Bennion, Ian

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N2 - 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.

AB - 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.

KW - fiber bragg gratings (fbgs)

KW - optical fiber sensing

KW - resonant cavity

KW - semiconductor optical amplifier (soa)

KW - time-division multiplexing (tdm)

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

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