An Overview of Thin-Film Lithium Niobate (TFLN) Modulators A TFLN modulator, short for Thin-Film Lithium Niobate Modulator, is an advanced optical device used to control and manipulate light signals in high-speed fiber optic communication systems. It represents the next generation of optical modulation technology, offering significant improvements in performance, size, and energy efficiency compared to traditional lithium niobate (LiNbO₃)...