In a step-index fiber, the refractive index profile of the fiber core has which of the following characteristics?
A. It is uniform over the fiber core
B. It linearly decreases from a maximum at the fiber center to a minimum at the core-cladding boundary
C. It is parabolic with a maximum index of refraction at the center and a minimum index of refraction at the core-cladding boundary
D. It linearly increases from a minimum at the fiber center to a maximum at the core cladding boundary
Show Answer
Answer: A
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