Flexible on-chip frequency comb generation using a SOI dual-drive MZM

We demonstrate comb generation on 220-nm silicon-on-insulator, enabled by a dual-drive Mach-Zehnder modulator, by which 7 comb lines with 7dB flatness and 5 lines with 3dB flatness have been achieved. This provides a promising solution for flexible multicarrier transmitters on silicon.