Figure 12
From: Programmable wavelength filter with double ring loaded MZI
Effect of dispersion effect for different filter configurations. (a) is a re-plot of Fig. 11b, the wavelength range is from 1550.6 to 1552.0 nm. (b) is the same filter measured in a larger wavelength range of 1549–1554 nm. (c) and (d) are two examples with more than 10 channels in 10 nm wavelength range. The dispersion effect has a strong impact on the extinction ratio between different channels.
