CPC H04B 10/616 (2013.01) [H04B 3/06 (2013.01)] | 14 Claims |
1. An optical signal processing circuit comprising:
a frequency-domain MIMO equalizer configured to generate, based on continuous subcarrier signals including a target subcarrier signal in an optical multicarrier signal to be received, the continuous subcarrier signals that have been subjected to frequency-domain MIMO equalization processing; and
a time-domain MIMO equalizer configured to generate, based on the continuous subcarrier signals that have been subjected to the frequency-domain MIMO equalization processing, the target subcarrier signal that has been subjected to time-domain MIMO equalization processing, wherein
the continuous subcarrier signals include N subcarrier signals that are successively multiplexed to respective frequencies above and below the target subcarrier signal, where N is a natural number,
an input×output of the frequency-domain MIMO equalizer is (2N+1)×(2N+1), and an input output of the time-domain MIMO equalizer is (2N+1)×1.
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