Optical transmission characteristic estimation method, optical transmission characteristic compensation method, optical transmission characteristic estimation system and optical transmission characteristic compensation system

摘要

To remotely estimate transmission characteristics of first and second optical transceivers connected to each other via an optical transmission line.SOLUTION: First data obtained by the second optical transceiver 16 when transmitting the first known signal from the first optical transceiver 9 to the second optical transceiver 16 and second data obtained by the second optical transceiver 16 And a temporary transfer function or an inverse transfer function of the receiver 16 b of the receiver 16 b, the transfer function or the inverse transfer function of the transmitter 9 a of the first optical transceiver 9 is estimated. The estimated transfer function or inverse transfer function of the transmitting section 9 a of the first optical transceiver 9 is transmitted from the second optical transceiver 16 to the first optical transceiver 9. When the second known signal compensated by the transfer function or the inverse transfer function of the transmitter 9 a of the transmitted first optical transceiver 9 is transmitted from the first optical transceiver 9 to the second optical transceiver 16 From the second data acquired by the second optical transceiver 16, the transfer function or inverse transfer function of the receiver 16 b of the second optical transceiver 16.BACKGROUND OF THE INVENTION