Graded-Index Fiber

Graded-index fiber is a optical fiber whose core refractive index decreases with increasing radial distance from the fiber axis. There is a significant decrease in modal dispersion with graded-index fiber as compared with single-index fiber.

Multimode graded-index fiber is usually used for transmitting data over a distances of a couple kilometers. Light travels down graded-index fibers in the shape of a parabolic curve.



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