Difference between Step Index Fiber and Graded Index Fiber.

Document: 10096

Category: General Information

Date Posted: 10/23/07

Problem

What is the difference between Step Index Fiber and Graded Index Fiber?

Solution

Step Index Fiber is a fiber in which the core is of a uniform refractive index and there is a sharp decrease in the index of refraction at the cladding.

Graded Index Fiber is a type of fiber where the refractive index of the core is lower toward the outside of the fiber. It bends the rays inward and also allows them to travel faster in the lower index of refraction region. This type of fiber provides high bandwidth capabilities.

Refractive Index is the ratio of light velocity in a vacuum to its velocity in the transmitting medium.

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