Fig. 3: Structural design of the dual-layer optical encryption fluorescent polymer waveguide chip. | Nature Communications

Fig. 3: Structural design of the dual-layer optical encryption fluorescent polymer waveguide chip.

From: Dual-layer optical encryption fluorescent polymer waveguide chip based on optical pulse-code modulation technique

Fig. 3

a The optical field distributions of the bottom waveguide layer in the horizontal and cross-sectional directions at 532 nm wavelength signal light; b the optical field distributions of the top waveguide layer in the horizontal and cross-sectional directions at 655 nm wavelength signal light.

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