Optical links are moving to higher and higher transmission speeds while shrinking to shorter and shorter ranges where optical links are envisaged even at the chip scale. Optical modulators are key building blocks in modern photonic integrated circuits (PICs), enabling the conversion of electrical signals into high-speed optical data. From telecommunications and datacom to sensing, LiDAR, and quantum technologies, the performance of a photonic system is often. Explore the world of optical modulators in photonics, covering high-speed, precision modulation and integration in modern communication systems. A modulation scheme continuously alters the property or properties of a waveform. In this case, it is light, in order to encode the binary information.