Advanced Fiber Resources (AFR) is set to unveil its cutting-edge 400 Gbps/lane thin-film lithium niobate (TFLN) modulator chip at OFC 2025, taking place at the Moscone Center in San Francisco from April 1-3. Designed for next-generation PAM-4 transmission systems, this breakthrough technology enables data rates of up to 3.2 Tbps, offering unparalleled performance for data centers and AI clusters. With superior bandwidth, efficiency, and integration potential, AFR's TFLN modulator stands out as a game-changer in high-speed optical communications.