Tunable erbium-doped fiber ring laser with signal-averaging function for fiber-optic sensing applications |
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| Authors: | S T Kuo P C Peng M S Kao H H Lu J F Chen |
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| Institution: | 1.Department of Electrical Engineering,National Chiao-Tung University,Hsinchu,Taiwan, R.O.C.;2.Department of Electro-Optical Engineering,National Taipei University of Technology,Taipei,Taiwan, R.O.C. |
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| Abstract: | This work proposes a novel erbium-doped fiber ring laser as a sensing control center (CC) for long-haul fiber Bragg grating
(FBG) sensor systems. The tunable erbium-doped fiber laser with signal averaging functionality not only provides intense and
stable laser light, but also suppresses the effect of noise on the system performance. A sample 30/60 km FBG sensor array
is connected to the fiber ring laser to demonstrate experimentally the feasibility and effectiveness of the laser as a CC.
The experimental results indicate that the signal averaging operation inside the proposed setup increases the system signal-to-noise
ratio (SNR). |
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