| 摘要 |
<p>Provided is an optical transceiver provided with an optical sending unit (100) and an optical receiving unit (300), in which signal points of a sent optical signal are distributed asymmetrically through X polarization and Y polarization by the optical sending unit (100) and the frequency and phase of a carrier wave of a received optical signal are simultaneously estimated between the X polarization and the Y polarization by the optical receiving unit (300), thereby detecting phase-slipping. Because the distribution of signal points of the received optical signal is specific to the phase-slipping state, it is possible to estimate the phase-slipping state and carry out decoding in accordance with the estimated phase-slipping state, for each signal point.</p> |
