ITU-T G.694.1

ITU-T G.694.1 is a standard that defines the specific wavelengths of laser light used in high-speed optical fiber communication systems, like fiber-optic internet. It ensures that different equipment and network components operate on standardized wavelengths—such as 1310 nm, 1550 nm, and 1625 nm—so they can work together seamlessly. This standard helps optimize data transmission by minimizing interference and signal loss, enabling reliable and efficient long-distance and high-capacity data transfer over fiber-optic cables essential for global telecommunications.