Fig. 1. Cross-section view of proposed waveguide

Fig. 2. Normalized electric field distributions. (a) 2D electric field distributions; (b) 1D electric field distribution along x direction when W=200 nm, α=π/3, and θ=π/3; (c) 1D electric field distribution along y direction when W=200 nm, α=π/3, and θ=π/3

Fig. 3. Effects of g on pattern properties under different W when α=π/3 and θ=π/3. (a) n_eff; (b) L_P; (c) A_N; (d) F_M

Fig. 4. Effects of g on laser performances under different W when α=π/3 and θ=π/3. (a) Γ; (b) G_th; (c) F_P

Fig. 5. Effects of θ on pattern properties under different α when g=2 nm and W=200 nm. (a) n_eff; (b) L_P; (c) A_N; (d) F_M

Fig. 6. Effects of θ on laser performances under different α when g=2 nm and W=200 nm. (a) Γ; (b) G_th; (c) F_P

Fig. 7. Effects of position deviation on pattern properties when g=2 nm,W=200 nm,α=π/3,and θ=π/6. (a) n_eff; (b) L_P; (c) A_N; (d) F_M

Fig. 8. Effects of position deviation on laser performances when g=2 nm,W=200 nm,α=π/3,and θ=π/6. (a) Γ; (b) G_th; (c) F_P