Dual dopant dual alpha multimode optical fiber

Details Dual dopant dual alpha multimode optical fiber Dual dopant dual alpha multimode optical fiber

2008-01-01

2008-01-01

Pak, Sung (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

C385S142000

Reexamination Certificate

active

07315677

ABSTRACT:
Multimode optical fiber is disclosed herein comprising germania and fluorine co-doped in the core of the fiber. The dopant concentration profiles are defined by a pair of alpha parameters. The operating window, or bandwidth window, is enlarged and attenuation, or loss, is low. In some embodiments, two operating windows are available for transmission.

REFERENCES:
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patent: 2005/0063653 (2005-03-01), Matthijse et al.
patent: 2006/0285809 (2006-12-01), Bickham et al.
patent: 2007/0189699 (2007-08-01), Matsuo et al.
patent: 1503230 (2004-07-01), None
R. Olshansky, “Mode coupling effects in graded-index optical fibers”, Applied Optics vol. 14, pp. 935-945, 1975.
R. Olshansky, “Multiple-α index profile”, Applied Optics vol. 18, pp. 683-689, 1979.
I.P. Kaminow and H.M. Presby, “Profile synthesis in multicomponent glass optical fibers”, Applied Optics vol. 16, pp. 108-112, 1977.

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