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US 5,493,435 AGranted
Optic switching
AssigneeGPT Limited
InventorsAlexander S. Philip, Geoffrey Chopping
Life of this patent
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Abstract
A broadband multiport coherent optic data switch comprises a passive optic combiner/splitter, a plurality of port units and a switch control unit connected thereto, each port unit having a coherent optic source tuned to a respective optic frequency, the output of each source carrying thereon control information, including control information received from the control unit, together with switched data, the outputs of the sources being combined and distributed to all of the plurality of port units.
Claims8
A broadband multiport coherent optic data switch, comprising:
- a plurality of port units each having inputs and outputs, one output of each port unit being connected to a respective input of a passive optic combiner/splitter;
- a switch control unit connected to the combiner/splitter;
- each port unit having a coherent optic source tuned to a respective optic frequency;
- each source having an output carrying control information, including control information received from the switch control unit, together with switched data;
- the outputs of the sources being combined by the combiner/splitter and distributed to all of the plurality of port units;
- and a further plurality of port units, each having an optic source having an output not carrying switched data.
3 more elements
Dependencies are inferred from the claim text.