Optical transmission systems including optical protection systems, apparatuses, and methods
AssigneeCorvis Corporation
InventorsJonathan L. Weston-Dawkes, Adel A. M. Saleh
Life of this patent
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Abstract
Optical transmission systems of the present invention include optical protection systems, apparatuses, and methods that provide increased reliability in the system. The optical system generally includes an optical switch having distinct, cooperating dedicated and shared protection sections. The shared protection sections in a plurality of nodes can be configured to provide a protection net, in which a plurality of traffic demands, or working channels, are commonly protected as protection group using one protection channels supported by the protection net.
Claims16
An optical system comprising:
- a first optical switch including at least distinct dedicated and shared protection sections;
- a first client optical transmitter in optical communication with said first optical switch;
- at least first and second receivers optically communicating with said first optical switch.
An optical system-comprising:
- a plurality of optical nodes interconnected pairwise by at least one optical path, wherein each of said nodes includes an optical switch configured to access a protection net for set of demand forming a protection group and at least one of said optical switches includes at least distinct dedicated and shared protection switching sections.
A method of performing protection switching comprising:
- providing a first optical switch including at least distinct dedicated and shared protection switching sections;
- providing an input signal to the dedicated protection switching section;
- and,
- configuring the dedicated protection switching section to provide one replicate of the input signal to a working channel and at least one other replicate to a protection channel via said shared protection switching section.
Dependencies are inferred from the claim text.