Fig. 1. Non-scanning correlation demodulation system for compound fiber Fabry-Perot sensors

Fig. 2. Structure of compound optical wedge

Fig. 3. Compound fiber Fabry-Perot pressure sensor

Fig. 4. Light intensity distribution of correlation interferometric signal at different positions of optical wedge for compound fiber optic Fabry-Perot sensor

Fig. 5. Light intensity distributions of correlation interference signal with change of cavity length. (a) Basal cavity; (b) air cavity

Fig. 6. Relationship between cavity length and peak position of correlated interference signal. (a) Basal cavity; (b) air cavity