Fig. 1. (a) Schematic diagram and (b) packaging diagram of our transceiver module.

Fig. 2. Photo of eight-channel MWPTPIC.

Fig. 3. (a), (b) Propagation of light between laser and modulator.

Fig. 4. Schematic diagrams of (a) GCPW and (b) coaxial adapter connection.

Fig. 5. (a) S21 parameter and (b) S11 parameter of thin-film circuits with different gaps.

Fig. 6. (a)–(k) Manufacturing process of the LNOI modulator chips.

Fig. 7. Electron microscope image of the modulator. (a) DC electrode and RF electrode, (b) RF electrode, and (c) waveguide cross-section.

Fig. 8. (a) Normalized OO bandwidth (S21 parameter), (b) electrical reflection (S11 parameter), and (c) crosstalk of the manufactured device.

Fig. 9. (a)–(d) Four channels of the SFDR of the manufactured device.