Fig. 5: Measured transmission spectra of the straight and Z-shaped PhCWGs. | Nature Communications

Fig. 5: Measured transmission spectra of the straight and Z-shaped PhCWGs.

From: High transmission in 120-degree sharp bends of inversion-symmetric and inversion-asymmetric photonic crystal waveguides

Fig. 5

a, b S = 3 PhCWG, c, d S = 2 PhCWG, e, f S = 1 PhCWG, g, h S = −1 PhCWG and i, j S = −2 PhCWG. Black lines indicate the straight waveguides and red lines indicate the Z-shaped waveguides with two bends. Yellow and green boxes show the single-mode regions. Tav shows the relative average transmittance of the Z-shaped waveguides. A SEM image of the corresponding waveguide is shown on the right side of each plot.

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