Equalizing device for compensating rapid state of polarization changes of an optical signal
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United States of America Patent
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Nov 15, 2022
Grant Date -
Jul 1, 2021
app pub date -
Mar 11, 2021
filing date -
Sep 11, 2018
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Abstract
The invention presents an equalizing device, a corresponding method and an optical signal with a frame structure for enabling the method. The equalizing device includes a first 2×2 MIMO equalizer configured to perform a first equalization on the digital signal, supported by a 2×2 MIMO channel estimation of the channel based on the digital signal. Further, the device includes a second 2×2 MIMO equalizer, arranged after the first equalizer and configured to perform a second equalization on the digital signal, supported by a State of Polarization (SOP) estimation of the optical signal based on the digital signal.
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