Multistep index optical fiber

Details Multistep index optical fiber Multistep index optical fiber

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

07366389

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.

REFERENCES:
patent: 6952518 (2005-10-01), Zhang et al.
patent: 7058270 (2006-06-01), Kim et al.
patent: 2005/0013572 (2005-01-01), Guan et al.
patent: 53-17349 (1978-02-01), None
patent: 56-78804 (1981-06-01), None
patent: 10-111414 (1998-04-01), None
patent: 11-52147 (1999-02-01), None

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