Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding
Reexamination Certificate
2008-04-29
2008-04-29
Kim, Ellen E. (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
Utilizing multiple core or cladding
C385S126000
Reexamination Certificate
active
10592261
ABSTRACT:
A multi step index optical fiber includes at least two concentrically arranged core portions, each having constant refractive index. The refractive indices of the core portions decrease toward the outer periphery of the optical fiber. The refractive indices of the core portions are set such that differences ΔN between refractive indices of adjacent core portions are uniform, and the distribution of the refractive indices approximates a G power distribution. Thereby, bandwidths on the order of several GHz/l00 m can be realized.
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patent: 2005/0013572 (2005-01-01), Guan et al.
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patent: 10-111414 (1998-04-01), None
patent: 11-52147 (1999-02-01), None
FUJIFILM Corporation
Kim Ellen E.
Sughrue & Mion, PLLC
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