Receiver algorithms for coherent detection of polarization-multiplexed optical signals
AssigneeAlcatel Lucent
InventorPeter J. Winzer
Life of this patent
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Abstract
A digital signal processor (DSP) operating within, for example, an optical receiver wherein the DSP processes complex sample streams derived from a received digitally modulated optical signal, the DSP configured to perform a method comprising: using a filter adaptation algorithm (FAA), processing digitized complex sample streams for each of a sequence of unitary matrix different starting conditions associated with the FAA to establish a converged FAA.
Claims21
A digital signal processor (DSP), comprising a memory configured to process complex symbol streams derived from a received digitally modulated optical signal, the DSP configured to perform a method, comprising:
- using a filter adaptation algorithm (FAA), processing the complex symbol streams for each of a sequence of predefined unitary matrix different starting conditions associated with the FAA to establish a converged FAA.
A computer non-transitory readable medium having stored thereon software instructions which, when processed by a computer, perform a method, comprising:
- processing complex symbol streams derived from a received digitally modulated optical signal using a filter adaptation algorithm (FAA) having starting conditions selected from each of a sequence of predefined unitary matrix starting conditions to establish a converged FAA.
Apparatus, comprising:
- a digital signal processor (DSP) configured to process complex symbol streams derived from a received digitally modulated optical signal, the DSP configured to perform a method comprising:
- using a filter adaptation algorithm (FAA), processing digitized complex symbol streams for each of a sequence of predefined unitary matrix different starting conditions associated with the FAA to establish a converged FAA.
Dependencies are inferred from the claim text.