Ji, YongjinYongjinJiRho, Dae-WonDae-WonRhoKim, MinkyuMinkyuKimZimmermann, LarsLarsZimmermannChoi, Woo-YoungWoo-YoungChoi2026-03-192026-03-192025979-8-3315-0904-01099-4742https://imec-publications.be/handle/20.500.12860/58862This paper presents a monolithically integrated 2× 64−Gb/s silicon photonic WDM transmitter using micro-ring modulators (MRMs) and EPIC technology, fabricated in a 0.25 μm process. The PAM-4 driver enhances linearity and performance, with measurements confirming stable 64−Gb/s operation.engProceedings paper10.1109/sum65312.2025.11121816WOS:001583595800070