Welcome to In-Vision’s competence center for Phase Light Modulation (PLM). Here, engineers, researchers and innovators can learn how PLM works, explore its possibilities and discover how to apply this powerful technology to real-world challenges.

Phase Light Modulation introduces a new approach to programmable light control. Instead of modulating only the intensity of light, phase modulation enables precise control of the optical wavefront. Using millions of individually addressable MEMS micromirrors, a Phase Light Modulator can display computer-generated phase patterns at high speed, shaping and directing laser light through diffraction and interference.

This opens up new possibilities for applications ranging from beam steering, holography and adaptive optics to laser processing, lithography, additive manufacturing, optical computing and advanced imaging. Compared with established spatial light modulator (SLM) technologies such as LCoS or conventional DLP® Digital Micromirror Devices (DMDs), PLM combines high-speed modulation with high optical power handling and a robust MEMS architecture.

On this page, we bring together the fundamentals of Phase Light Modulation and wavefront control, explain how PLM technology works, compare it with other light modulation technologies, explore current and emerging applications, and provide resources for engineers who want to evaluate PLM for their own optical systems.