Create a detailed image of a graded-index optical fiber, shown in a cross

$Create a detailed image of a graded-index optical fiber, shown in a cross-sectional view. The fiber should be depicted with a smooth gradient in its refractive index, transitioning from a higher index at the core center to a lower index near the edges. Illustrate light passing through the fiber in the form of curved, wavy lines that gradually bend back towards the center as they propagate along the length of the fiber. This bending effect demonstrates how the varying refractive index guides the light, keeping it within the fiber. The light paths should be shown in different colors, like blue, green, and red, to represent different modes of light transmission. The background should be dark and minimal, ensuring the focus remains on the light paths and the graded index structure. The overall atmosphere should convey the concept of efficient, controlled light transmission through advanced optical technology.$