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 | |
| Publication status | Published - 27 Sept 2004 |
| Externally published | Yes |
Funding
Manuscript received April 15, 2004; revised June 7, 2004. This work was supported in part by the U.K. EPSRC. G. D. Lloyd is with Insensys Ltd, Fareham PO15 7AB, U.K., and also with the Photonics Research Group, Aston University, Aston, Birmingham B4 7ET, U.K. (e-mail: [email protected]). L. A. Everall and K. Sudgen are with Insensys Ltd, Fareham PO15 7AB, U.K. I. Bennion is with the Photonics Research Group, Aston University, Aston, Birmingham B4 7ET, U.K. (e-mail: [email protected]). Digital Object Identifier 10.1109/LPT.2004.834849
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
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