VARIABLE DISPERSION COMPENSATION DEVICE, OPTICAL RECEIVER WITH VARIABLE DISPERSION COMPENSATION FUNCTION, AND OPTICAL COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an optical receiver that can optimize dispersion compensation more easily than before. ;SOLUTION: The variable dispersion compensation device is provided with a variable dispersion compensation unit 1 that employs a dispersion compensation technology for an optical signal to vary the dispersion depending on the level of a received electric signal, a duty detection circuit 3 that detects the duty of the optical signal, and a variable dispersion compensation unit drive circuit 4 that controls the variable dispersion compensation unit 1 on the basis of an output signal from the duty detection circuit 3.;COPYRIGHT: (C)2003,JPO