Optical fiber protection switch
AssigneeSprint Communications Company L.P.
InventorsXiaojun Fang, Li-Ping Chen, Boris Faer
Life of this patent
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Abstract
An optical fiber protection switch comprises an optical interface and an optical switching system. The optical interface exchanges optical signals with optical fibers that are deployed in a ring configuration. The optical switching system exchanges the optical signals with the optical interface. The optical switching system performs ring switching of the optical signals in the optical domain in response to a first fault. The optical switching system performs span switching of the optical signals in the optical domain in response to a second fault.
Claims20
An optical fiber protection switch comprising:
- an optical interface configured to exchange optical signals with optical fibers that are deployed in a ring configuration;
- and
- an optical switching system configured to exchange the optical signals with the optical interface, to perform ring switching of the optical signals in the optical domain in response to a first fault, and to perform span switching of the optical signals in the optical domain in response to a second fault.
A method of operating an optical fiber protection switch, the method comprising:
- exchanging optical signals with optical fibers that are deployed in a ring configuration;
- performing ring switching of the optical signals in the optical domain in response to a first fault;
- and
- performing span switching of the optical signals in the optical domain in response to a second fault.
Dependencies are inferred from the claim text.