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US 2026/0246555 A1Published application
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.
Claims27
An optical system comprising:
- at least one laser configured to generate a wave division multiplex (WDM) on a light guide;
- 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;
- and
- a decoder configured to extract the CDMA symbols and apply the extracted CDMA symbols to generate a metric of crosstalk between two or more of the WDM channels.
1 more element
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;
- and
- 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.
An optical communication process comprising:
- generating a wave division multiplex (WDM) on a light guide;
- and
- generating Code Division Multiple Access (CDMA) symbols on the light guide spread across a plurality of channels of the WDM.
An optical system comprising:
- a wave division multiplex (WDM) transmitter configured to transmit WDM data signals over a light guide;
- and
- a Code Division Multiple Access (CDMA) symbol generator configured to generate CDMA symbols using an orthogonal function selected from a finite ensemble of orthogonal functions, and distribute portions of a spread-spectrum representation of the CDMA symbols across a plurality of WDM channels such that each of the WDM channels carries a fraction of the CDMA symbols.
An optical communication process comprising:
- generating wave division multiplex (WDM) signals over a light guide;
- generating Code Division Multiple Access (CDMA) symbols using orthogonal functions selected from a finite ensemble;
- spreading the CDMA symbols across a plurality of WDM channels such that each channel carries a portion of the CDMA symbols;
- transmitting the CDMA symbols at a signal level and bandwidth configured to be below a noise floor of WDM receivers;
- and
- wherein the CDMA symbols are formed to be recoverable using correlation detection and to be substantially rejected by WDM receivers.
3 more elements
Dependencies are inferred from the claim text.