Fig. 1. Structure diagram of slot waveguide

Fig. 2. Mode field distribution of TE₀ mode at wavelength of 1550 nm

Fig. 3. Variation of second-order dispersion and dispersion parameters under different structural parameters with wavelenth. (a) Second-order dispersion and (b) dispersion parameters at different interlayer heights; (c) second-order dispersion and (d) dispersion parameters under different silicon layer widths; (e) second-order dispersion and (f) dispersion parameters at different MEH-PPV interlayer widths

Fig. 4. Linear phase mismatch and total phase mismatch

Fig. 5. Variation of effective mode field area and nonlinear coefficient with wavelength. (a) Effective mode field area; (b) nonlinear coefficient

Fig. 6. Conversion efficiency curve when pump wavelength is 1550 nm

Fig. 7. Variation curves of wavelength conversion efficiency under different (a) signal optical powers, (b) pump optical powers, and (c) waveguide lengths under optimal waveguide size