Abstract
A wavelength-division-multiplexing technique for interrogating 10-cascaded fiber Bragg grating sensing elements based on a ring-compounded-cavity fiber laser is reported. A feedback control technique was introduced to a tunable Fabry-Perot filter that tracks the wavelength-shift of the sensor. The sensors were demodulated using an unbalanced scanning Michelson interferometer and a sensitivity of 1.682°/με has been demonstrated.
Original language | English |
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Pages (from-to) | 702-704 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 13 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1 Jul 2001 |
Keywords
- Demodulation and fiber Bragg grating sensor system
- Fiber Bragg grating
- Interrogation
- Ring-cavity laser
- Wavelength-division multiplexed
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering