METHOD FOR OPTICAL FIBER COMMUNICATION AND TERMINAL STATION DEVICE AND SYSTEM USED FOR EXECUTION OF THE METHOD

摘要

PROBLEM TO BE SOLVED: To perform wavelength dispersion and nonlinear compensation. SOLUTION: An equipment 8 for sending out optical signals provided with variable optical power to an optical fiber transmission line 6 is provided and the optical signals transmitted by the transmission line are converted to electric signals by an optical receiver 12. A parameter relating to the waveform degradation of the electric signals is detected by a monitor unit 14 and a control unit 10 controls the optical power of the optical signals so as to improve the waveform degradation.