Fig. 1. The structure of designed PM-PCF structure

Fig. 2. The excitation and detection of Brillouin dynamic grating and operation scheme

Fig. 3. Schematic diagram of hydrostatic pressure on PM-PCF

Fig. 4. The research method of this paper

Fig. 5. Distribution of stress and refractive index when P₀=0 MPa, T₀=20℃

Fig. 6. Electric field distribution of the fundamental mode

Fig. 7. The normalized BDG spectra when P₀=0 MPa, T₀=20℃

Fig. 8. Distribution of stress and refractive index when P=1 MPa, T=20℃

Fig. 9. The refraction index as a function of hydrostatic pressure at different temperatures

Fig. 10. The normalized BDG spectra at different hydrostatic pressures

Fig. 11. The Δυ_Bire as a function of hydrostatic pressure at different temperatures

Fig. 12. The normalized BDG spectra at different hydrostatic pressures when T=20℃

Fig. 13. Distribution of stress and refractive index when P=0 MPa, T=0℃

Fig. 14. Refractive index distribution of the PM-PCF when P=0 MPa, T=0℃

Fig. 15. The refraction index as a function of temperature at different hydrostatic pressures

Fig. 16. The normalized BDG spectra at different temperatures

Fig. 17. The Δυ_Bire as a function of temperature at different hydrostatic pressures

Fig. 18. The normalized BDG spectra at different temperatures when P=0 MPa

Fig. 19. The change of V_eff with temperature or hydrostatic pressure

Fig. 20. The change of confinement loss with temperature or hydrostatic pressure

Fig. 21. The change of effective mode area with temperature or hydrostatic pressure