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

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2323-2325
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	16
Issue number	10
DOIs	https://doi.org/10.1109/LPT.2004.834849
Publication status	Published - 27 Sep 2004
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Access to Document

10.1109/LPT.2004.834849

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