Fig. 1. Multi-channel Si photonic system. CH_i represents the corresponding pump light λ_i and Stokes light λ_si. Si wire waveguide height h = 220 nm, width w = 450 nm.

Fig. 2. Dispersion coefficients of wire waveguides. (a) Propagation constant. (b) First-order dispersion coefficient. (c) Second-order dispersion coefficient. (d) Group refractive index.

Fig. 3. Four-channel SRS effect. (a) The propagation of pump lights. (b) The propagation of Stokes lights. (c) Input (dash line) and output (solid line) profiles of CH1 pump pulse. (d) Input (dash line) and output (solid line) profiles of CH1 Stokes pulse.

Fig. 4. Transmission in the wire waveguide. (a) The propagation of 1435.68 nm pump pulse. (b) The propagation of 1551.60 nm Stokes pulse. (c) The transmission of the enlarged four-channel Stokes lights at 300 K and 400 K, respectively.

Fig. 5. Temperature sensitive de-multiplexer. (a) The two-stage cascaded Mach–Zehnder wavelength filter. (b) Electric field intensity profile for the DC at a wavelength of 1.55 µm. (c) Transmission of de-multiplexer displayed in (a) at 300 K. (d) Transmission of de-multiplexer displayed in (a) at 400 K.

Fig. 6. Transmission of the enlarged Stokes light through the four-channel de-multiplexer. (a) CH1 output port. (b) CH2 output port. (c) CH3 output port. (d) CH4 output port.

Fig. 7. Proposed temperature insensitive flat pass-band filter. (a) Single cell of the cascaded Mach–Zehnder-like lattice filters. (b) The anti-thermal four-channel wavelength splitting filters.

Fig. 8. (a) Simulated TO coefficients and effective refractive index. (b) Transmission of the designed temperature insensitive flat pass-band filter.

Fig. 9. Transmission of the enlarged Stokes lights through the anti-thermal four-channel de-multiplexer. (a) CH1 output port. (b) CH2 output port. (c) CH3 output port. (d) CH4 output port.