A refractive index profile is the distribution of
refractive indices of materials within an
optical fiber. Some optical fiber has a
step-index profile, in which the core has one uniformly-distributed index and the cladding has a lower uniformly-distributed index. Other optical fiber has a
graded-index profile, in which the refractive index varies gradually as a function of radial distance from the fiber center. Graded-index profiles include
power-law index profiles and
parabolic index profiles.
Optical fiber
Refraction
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