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

Lloyd, Glynn D., Everall, Lorna A., Sugden, Kate and Bennion, Ian (2004). Resonant cavity time-division-multiplexed fiber Bragg grating sensor interrogator. IEEE Photonics Technology Letters, 16 (10), pp. 2323-2325.


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.

Publication DOI:
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Uncontrolled Keywords: fiber bragg gratings (fbgs),optical fiber sensing,resonant cavity ,semiconductor optical amplifier (soa),time-division multiplexing (tdm),Electrical and Electronic Engineering,Physics and Astronomy (miscellaneous),Atomic and Molecular Physics, and Optics
Full Text Link: http://ieeexplo ... rnumber=1336917
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2004-10
Authors: Lloyd, Glynn D.
Everall, Lorna A.
Sugden, Kate ( 0000-0001-6323-1082)
Bennion, Ian

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