Electronic Nonlinearity Compensation For Optical Transmission Systems
AssigneeAlcatel Lucent
InventorsChongjin Xie, René-Jean Essiambre
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Abstract
Embodiments for optical communication are provided in which a receiver includes a digital signal processor configured to process a digital form of an input signal. In one embodiment, the digital signal processor includes a first electronic chromatic dispersion compensation module for compensating the digital form of the input signal, at least one nonlinearity compensation stage for serially compensating an output of the electronic chromatic dispersion compensation module; and a second electronic chromatic dispersion compensation module for compensating an output of the at least one nonlinearity compensation stage.
Claims20
A receiver comprising:
- a digital signal processor configured to process a digital form of an input signal, the digital signal processor including:
- a first electronic chromatic dispersion compensation module for compensating the digital form of the input signal;
- at least one nonlinearity compensation stage for serially compensating an output of the electronic chromatic dispersion compensation module;
- and
- a second electronic chromatic dispersion compensation module for compensating an output of the at least one nonlinearity compensation stage.
An optical communication system comprising:
- a receiver comprising:
- a digital signal processor configured to process a digital form of an input signal, the digital signal processor including:
- a first electronic chromatic dispersion compensation module for compensating the digital form of the input signal;
- at least one nonlinearity compensation stage for serially compensating an output of the electronic chromatic dispersion compensation module;
- and
- a second electronic chromatic dispersion compensation module for compensating an output of the at least one nonlinearity compensation stage.
A method for processing a digital form of an input signal at a receiver, the method comprising:
- performing a first electronic chromatic dispersion compensation on the digital form of the input signal;
- compensating an output of the first electronic chromatic dispersion compensation using at least one nonlinearity compensation stage;
- and
- performing a second electronic chromatic dispersion compensation on an output of the at least one nonlinearity compensation stage.
Dependencies are inferred from the claim text.