Optical waveguides – Integrated optical circuit
Reexamination Certificate
2006-05-03
2010-11-02
Rahll, Jerry T (Department: 2874)
Optical waveguides
Integrated optical circuit
C385S123000, C398S139000, C398S144000
Reexamination Certificate
active
07826691
ABSTRACT:
The invention relates to an access network for exchanging communication signals between a transit network and at least one communication medium of a user. The communication medium is operatively connected to an exchange by means of an optical fiber connection for exchanging the communication signals, and the exchange is connected to the transit network. The fiber connection comprises at least one multimode fiber, which is bent over at least one first part of its length, in such a manner that the fiber comprises at least one complete winding in the first part thereof mainly for maintaining one or more modes of the communication signals into the fiber. Said modes have been selected from a group comprising the ground mode and one or more lower modes near the ground mode.
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Broadband Access and In-House Networks—Extending the Capabilities of Multimode Fibre Networks, Koonen, et al., Symposium M03.1; Ec0C-100G 2003 Proceedings—vol. 5.
De Fouw Marinus Jacob
Matthijsse Pieter
Draka Comteq B.V.
Rahll Jerry T
Sughrue & Mion, PLLC
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