| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology capable of properly compensating spectrum narrowing and wavelength dispersion. <P>SOLUTION: An optical transmission system has a monitoring controller 30 performing control of: (a) making a transmission side transmission device 10 compensate a transmission signal for spectrum narrowing so that the transmission signal from the transmission side transmission device 10 is received by a reception side transmission device 20 through a node 42; (b) searching a first wavelength dispersion compensation value by a large increment based on an error rate of reception signals after (a); (c) searching a second wavelength dispersion compensation value by a smaller increment than (b) based on the first wavelength dispersion compensation value and the error rate; (d) making the transmission side transmission device 10 compensate the transmission signal for wavelength dispersion based on the second wavelength dispersion compensation value; and (e) making the transmission side transmission device 10 compensate the transmission signal for the spectrum narrowing based on an error rate of reception signals after (d). <P>COPYRIGHT: (C)2013,JPO&INPIT |
