Fig. 1. Design of PCF

Fig. 2. The electric field distribution of the SPR-based PCF temperature sensor

Fig. 3. The relationship between n_eff、loss α and λ of PCF-SPR temperature sensor at 0 ℃

Fig. 4. Relationship between λ and loss α in fiber core mode with different metal layer thicknesses

Fig. 5. The relationship between the λ and the loss α of the long axis a under different small elliptical air holes in the fiber core mode

Fig. 6. The relationship between the λ and the loss α of the short axis b under different small elliptical air holes in the fiber core mode

Fig. 7. The relationship between λ and loss α of the short axis B under different large elliptical air holes in the fiber core mode

Fig. 8. The relationship between the λ of PCF and loss α、temperature at－80~0 ℃ temperature

Fig. 9. The relationship between the λ of PCF and loss α、temperature at 0~80 ℃ temperature