You may check the datasheet of the “optical DP-16-QAM Transmitter” component. It describe the structure of the DP MZM that is used for in the component for DP-16QAM system. You may access the datasheet from the help button in the component property.
Thank you for your reply. Actually, I want Dual parallel MZM (DP MZM) as a wavelength shifter. But the DPMZM design you have suggested doesn’t give wavelength shift. What parameter should I change to get shifted wavelength?