Channel de-skewing for a coherent optical receiver

A device comprising:

• one or more processors to:
• receive a plurality of signals, from an optical receiver, via a plurality of channels,
• identify that a first signal, of the plurality of signals, is received via a first channel of the plurality of channels;
• identify that a second signal, of the plurality electrical signals, is received via a second channel, of the plurality of channels, where the second signal is orthogonal to the first signal;
• measure a plurality of skew values based on a difference in arrival times between one or more other signals of the plurality of signals and the first signal or the second signal;
• generate a plurality of average skew values based on at least a portion of the plurality of skew values and at least a portion of a previously-measured plurality of skew values,
• generate a plurality of de-skew values based on the plurality of average skew values, and
• transmit the plurality of de-skew values to the optical receiver, where transmitting the plurality of de-skew values allows the optical receiver to de-skew the plurality of signals,
• where the plurality signals are generated, by the optical receiver, as a result of processing an optical signal received from an optical transmitter, and
• where the optical signal has a scrambled polarization state, the scrambled polarization state including a polarization of the optical signal that changes as a function of time.

A system comprising:

• a de-skewing device to:
• receive a plurality of electrical signals via a plurality of channels,
• identify that a first signal, of the plurality of electrical signals, as a reference signal, is received via a first channel of the plurality of channels,
• identify that a second signal, of the plurality of electrical signals, is received via a second channel, of the plurality of channels, where the second signal is orthogonal to the first signal,
• generate one or more skew values that correspond to differences in arrival times between one or more other signals, of the plurality of electrical signals, and the first signal or the second signal,
• generate one or more de-skew values, associated with the plurality of channels, based on the one or more skew values and another one or more skew values that were previously generated, and
• output the one or more de-skew values;
• and
• an optical receiver to:
• receive the one or more de-skew values from the de-skewing device,
• de-skew the plurality of channels using the one or more de-skew values,
• receive an optical signal from an optical transmitter and via an optical path, where the optical signal is associated with a scrambled polarization state,
• process the optical signal to generate the plurality of electrical signals, and
• output the plurality of electrical signals via the plurality of channels.