What are Graded Index Optical Fiber ?

What are Graded Index Optical Fiber ?

Graded Index Optical Fiber

Basically the graded index fiber refractive index of the core is not constant. And this core refractive index changes as a function of radial distance from the center of the fiber. And graded index fiber is simply multimode graded index fiber. The graded index fiber ri is maximum along the axis of the core and decreases from the core to the cladding. And this diameter of core is about 50┬Ám in multimode fiber. Graded index fiber means light rays are given a helical path to pass through the graded index fiber. The rays are named as Skew Rays. And the self-focusing effect reduces this fiber loss and pulse distortion. And the capacity to carry information increases.

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