Optical network and method for processing data in an optical network
AssigneeXieon Networks S.a.r.l.
InventorSylvia SMOLORZ
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Abstract
An optical network has an optical line termination coupled to a backbone network, in particular to an optical long haul network and a local exchange coupled to an optical access network. The local exchange provides an optical connection between an optical network unit of a tree topology and the optical line termination, which is part of a ring topology. There is also described a method for processing data in such an optical network.
Claims26
1-15. (canceled)
A local exchange configured to convert downstream traffic conveyed via a two-fiber topology to downstream traffic conveyed via a single-fiber topology, and to convert upstream traffic conveyed via said single-fiber topology to upstream traffic conveyed via said two-fiber topology,
- said local exchange comprising:
- first and second couplers for coupling with first and second fibers of said two-fiber topology, respectively, said first and second couplers configured to branch-off downstream traffic from respective ones of said first and second fibers,
- a third coupler for splitting upstream traffic into a first portion and a second portion, and
- fourth and fifth couplers for coupling said first and second upstream traffic portions into said first and second fibers, respectively.
A method of converting downstream traffic conveyed via a two-fiber topology to downstream traffic conveyed via a single-fiber topology, and of converting upstream traffic conveyed via a single-fiber topology to upstream traffic conveyed via said two-fiber topology, comprising the following steps:
- branching off downstream traffic from one of a first and a second fiber of said two-fiber topology using a respective one of a first and a second coupler provided by a local exchange,
- splitting upstream traffic using a third coupler into a first portion and a second portion, and
- coupling at least one of said first and second portions into a respective one of said first and second fibers using a respective one of a fourth and a fifth coupler.
Dependencies are inferred from the claim text.