MULTIMODE FIBER HAVING IMPROVED INDEX PROFILE

摘要

A graded index multimode fiber and method of producing the graded index multimode fiber utilize technique of reducing an index profile of the core of the multimode fiber below a standard parabolic index profile. This can be done by changing dopant concentrations in the fiber core over the radius of the fiber core. The result is a multimode fiber having differential mode delay characteristics that are intentionally n minimized. The index profile can be reduced below the standard parabolic index profile over the entire radius of the core, or only for radii above a specified radius.