Fig. 1. (a) Structural schematic of controllable polarization analyzer based on waveguide structure; (b) cross-sectional view of waveguide at position of A₁A₂; (c) cross-sectional view of waveguide at position of B₁B₂

Fig. 2. Optical field distributions of signal in process of propagating when crystal axis of liquid crystal is along horizontal direction. (a) TE wave; (b) TM wave

Fig. 3. Optical field distributions of signal in process of propagating when crystal axis of liquid crystal is along vertical direction. (a) TE wave; (b) TM wave

Fig. 4. Variation in normalized optical power when crystal axis of liquid crystal is along horizontal direction. (a) Variation in normalized optical power with wavelength; (b) variation in normalized optical powerwith linewidth error; (c) variation in normalized optical power with deviation of waveguide rib thickness