Fig. 1. Distribution of the periodic SWG

Fig. 2. Diagram of the relationship between the transmittance (reflection) rate, period, and duty cycle. (a) TM polarized light; (b) TE polarized light

Fig. 3. Reflectance spectrum of the PBS

Fig. 4. Variation curve of X_ER with incident wavelength

Fig. 5. Schematic diagram of the simulation area

Fig. 6. Electric field distribution diagram. (a) TM polarized light; (b) TE polarized light

Fig. 7. Effect of the incident angle on the performance of PBS. (a) Reflectivity; (b) polarization extinction ratio

Fig. 8. Influence of grating structure parameters on reflection spectrum. (a) Thickness; (b) period; (c) duty cycle

Fig. 9. Influence of grating structure parameters on X_ER. (a) Thickness; (b) period; (c) duty cycle