Fig. 1. Structure, photograph, packaging of photonic crystal fiber temperature and pressure sensor

Fig. 2. Manufacturing process

Fig. 3. FFT processing of spectral signal

Fig. 4. Experimental system

Fig. 5. Pressure data analysis

Fig. 6. The relationship between temperature and L_OPD2

Fig. 7. The comparison between actual pressure and measured pressure

Fig. 8. The comparison between actual temperature and measured temperature