Failsafe optical splitter and method to isolate faults in a passive optical network
AssigneeNokia Siemens Networks Oy
InventorsMarek Hajduczenia, Pedro Inacio, Paulo Miguel Monteiro, Silvia Pato, Henrique Silva
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Abstract
An optical splitter for a passive optical network for telecommunication signal transmission with an optical line terminal includes a wavelength selective optical electrical converter, an AC/DC splitter, an energy reservoir and optical switches, where the splitter comprises also a data transmission processing module by which the optical switches can be controlled according to data signals transmitted from the optical line terminal.
Claims13
An optical splitter for a passive optical network for telecommunication signal transmission with an optical line terminal, comprising:
- a wavelength-selective optical electrical converter;
- an AC/DC splitter connected to said converter;
- an energy reservoir connected to said AC/DC splitter;
- a data transmission processing module;
- and
- a plurality of optical switches connected to and controlled by said data transmission processing module in accordance with data signals transmitted from the optical line terminal.
A method of severing and reconnecting optical lines to an optical splitter, comprising:
- providing an optical splitter for a passive optical network for telecommunication signal transmission, including:
- a wavelength-selective optical electrical converter;
- an AC/DC splitter connected to said converter;
- an energy reservoir connected to said AC/DC splitter;
- a data transmission processing module;
- and
- a plurality of optical switches connected to and controlled by said data transmission processing module in accordance with data signals transmitted from the optical line terminal;
- receiving at the optical splitter an optical power signal sent with a wavelength outside a range of a telecommunication signal transmission from an optical line terminal to the optical splitter;
- energizing in the optical splitter, electronic circuitry;
- whereby the optical power signal carries data signals from the optical line terminal to the optical splitter, by which the optical switches can be switched to selectively sever or reconnect the optical lines.
Dependencies are inferred from the claim text.