Augmented reality technology (AR) is a new technology that integrates the real world and the virtual world, and simulates information that is difficult to experience in the real world. Virtual reality technology (VR) is the combination of virtual and reality. Virtual reality technology (VR) uses computers to generate a simulated environment, the authenticity of the simulated environment is difficult to distinguish from the real world, making people feel immersive. At the same time, virtual reality has all the perception functions that human beings have, such as hearing, vision, touch, taste, smell and other perception systems. It has a powerful simulation system and truly realizes human-computer interaction. KT Photonics is committed to providing the required VCSEL chips for AR/VR applications.