| 主权项 |
1. An optical transmission system comprising:
an optical transmitting apparatus that includes a polarization controller configured to change a polarization state of a single light at an operating frequency included in a frequency range at which polarization trackability is obtained on a receiving side, based on a notified monitoring result, the optical transmitting apparatus being configured to output the signal light having the changed polarization state, the polarization controller configured to check an improvement of transmission quality, change, in a first direction, a frequency for changing the polarization state of a signal light to be transmitted to the optical transmitting apparatus when acquiring the improvement, and change, in a second direction opposite to the first direction, the frequency for changing the polarization state of the signal light to be transmitted to the optical transmitting apparatus when not acquiring the improvement; and an optical receiving apparatus, coupled to the optical transmitting apparatus via an optical fiber transmission line, that is provided on the receiving side and includes a monitoring control unit configured to:
receive the signal light having the changed polarization state, andmonitor the transmission quality of the received signal light. |
