OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM
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United States of America Patent
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app pub date -
Apr 1, 2016
filing date -
Oct 11, 2013
priority date (Note) -
Abandoned
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Abstract
An optical fiber includes a core portion, and a cladding portion being formed at an outer periphery of the core portion and having a refractive index lower than a maximum refractive index of the core portion. The core portion has α-shaped refractive index profile in which a value of α is equal to or greater than 3 and equal to or smaller than 10, and at least a diameter of the core portion and a relative refractive-index difference of the core portion relative to the cladding portion are set so that light can be propagated with equal to or greater than 6 propagation modes at a wavelength of light inputted.
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