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US 12,750,151 B2Granted
CDMA over WDM as a link management protocol
AssigneeNVIDIA Corporation
InventorsSegev Binyamin Zarkovsky, Shai Cohen
Life of this patent
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Abstract
An optical communication system includes at least one wave division multiplex (WDM) transmitter configured to generate WDM signals in multiple channels on a light guide, and a Code Division Multiple Access (CDMA) symbol generator coupled to modulate output of the WDM transmitter at a frequency below a noise floor of the WDM signals.
Claims17
An optical transmitter comprising:
- at least one laser configured to generate a wave division multiplex (WDM) on a light guide;
- and
- a Code Division Multiple Access (CDMA) symbol generator coupled to modulate CDMA symbols on the light guide across a plurality of channels of the WDM;
- a detector configured to tap the light guide for a detected signal;
- and
- logic to identify from the detected signal a metric of crosstalk between the WDM channels.
3 more elements
An optical communication system comprising:
- at least one wave division multiplex (WDM) transmitter configured to generate WDM signals in a plurality of channels on a light guide;
- a Code Division Multiple Access (CDMA) symbol generator coupled to generate CDMA symbols on the light guide below a noise floor of the WDM signals;
- a detector configured to tap the light guide for a detected signal;
- and
- a correlator configured to identify from the detected signal a metric of crosstalk between the WDM channels.
2 more elements
An optical communication process comprising:
- generating a wave division multiplex (WDM) on a light guide;
- generating Code Division Multiple Access (CDMA) symbols on the light guide spread across a plurality of channels of the WDM;
- and
- extracting the CDMA symbols and applying the extracted CDMA symbols to generate a metric of crosstalk between two or more of the WDM channels.
1 more element
Dependencies are inferred from the claim text.