Fiber-laser-based wavelength-division multiplexed fiber Bragg grating sensor system
- Yu, Y
- Lui, L
- Tam, H
- Chung, W
Publication date
January 2001
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE) Journal
IEEE Photonics Technology LettersAbstract
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.Department of Electrical Engineerin
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