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Light Propagation in a Fiber Optic


       Cable Index P                         rofiles:



       Step Index











     A step-index profile is a refractive index profile characterized by a uniform

     refractive index within the core and a sharp decrease in refractive index at
     the core-cladding interface so that the cladding is of a lower refractive


     index


























    Step-index profile, in which the core has one uniformly-distributed index and

    the cladding has a lower uniformly-distributed index.
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