Abstract
An active interrogation technique for a 16-cascaded wavelength-division multiplexing fiber Bragg grating sensor system is proposed. The system has been demonstrated using a combination of a feedback control technique, which makes the transmission of an employed tunable F-P filter track the Bragg wavelength of the interrogated sensor automatically, and a technique for choosing the output wavelength of a ring-compounded-cavity fiber laser by tuning the applied voltage of the filter. Demodulated by using an unbalanced scanning Michelson interferometer, a sensitivity of 1.682 Deg/με has been achieved.
Original language | English |
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Pages (from-to) | 277-281 |
Number of pages | 5 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 4595 |
DOIs | |
Publication status | Published - 1 Jan 2001 |
Keywords
- Demodulation and fiber Bragg grating sensor system
- Fiber Bragg grating
- Interrogation
- Ring-cavity fiber laser
- Wavelength-division multiplexed
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering