Abstract

Sensitivity, fringe contrast, and dynamic range are the three most important parameters in the theoretical performance evaluation of fiber Fabry-Pérot (F-P) interferometric sensors. This paper theoretically models the effect that the cavity length, the F-P finesse, the source bandwidth, mirror misalignments and symmetry play in the sensitivity, fringe contrast, and dynamic range of a fiber F-P interferometer interrogated with a low-coherence light source. The developed systematic fiber F-P interferometer analysis approach and the numerical analysis results on both guided and unguided fiber F-P interferometer (FFPI) sensors may provide useful guidance for sensor design optimization.

© 2006 IEEE

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