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US 2012/0269514 A1Published application
High Speed IO with Coherent Detection
AssigneeFujitsu Limited
InventorNikola Nedovic
Life of this patent
Estimating the term…
Abstract
In one embodiment, a first module of a server system modulates a common-source optical signal to generate a modulated optical data signal, transmits the modulated optical data signal to a second module of the server system via an optical link, and the second module demodulates the optical data signal using a coherent detection technique using the common-source optical signal.
Claims31
A method comprising:
- generating, by a laser, a common-source optical signal;
- distributing, by a plurality of first optical communication links, the common-source optical signal to each of a plurality of modules within a local optical communication system, each of the plurality of modules comprising one or more optical interface modules, wherein the one or more optical interface modules are optically connected to respective optical interface modules of other modules of the plurality of modules via one or more respective second optical communication links;
- modulating, by an optical interface module of a first one of the plurality of modules, the common-source optical signal distributed to the first one of the plurality of modules to generate a modulated optical data signal;
- transmitting, by the optical interface module of the first one of the plurality of modules, the modulated optical data signal via one of the second optical communication links to an optical interface module of a second one of the plurality of modules;
- and
- demodulating, by the optical interface module of the second one of the plurality of modules, the modulated optical data signal using a coherent detection technique using the common-source optical signal distributed to the second one of the plurality of modules.
3 more elements
A local optical communication system, comprising:
- a laser configured to generate a common-source optical signal;
- a plurality of modules wherein each of the plurality of modules comprising one or more optical interface modules, wherein each of the plurality of modules are optically connected to respective optical interface modules of other modules of the plurality of modules via one or more respective second optical communication links;
- and
- a plurality of first optical communication links configured to distribute the common-source optical signal to each of a plurality of modules, wherein:
- an optical interface module of a first one of the plurality of modules being configured to modulate the common-source optical signal distributed to the first one of the plurality of modules to generate a modulated optical data signal;
- the optical interface module of the first one of the plurality of modules being configured to transmit the modulated optical data signal via one of the second optical communication links to an optical interface module of a second one of the plurality of modules;
- and
- the optical interface module of the second one of the plurality of modules being configured to demodulate the modulated optical data signal using a coherent detection technique using the common-source optical signal distributed to the second one of the plurality of modules.
5 more elements
A system comprising:
- means for generating a common-source optical signal;
- means for distributing the common-source optical signal to each of a plurality of modules within a local optical communication system, each of the plurality of modules comprising one or more optical interface modules, wherein the one or more optical interface modules are optically connected to respective optical interface modules of other modules of the plurality of modules via one or more respective second optical communication links;
- means for modulating the common-source optical signal distributed to a first one of the plurality of modules to generate a modulated optical data signal;
- means for transmitting the modulated optical data signal via one of the second optical communication links to an optical interface module of a second one of the plurality of modules;
- and
- means for demodulating the modulated optical data signal using a coherent detection technique using the common-source optical signal distributed to the second one of the plurality of modules.
3 more elements
Dependencies are inferred from the claim text.