Patent ID: 7680419
Filing Date: 2010-03-16
Classification: H04B

Abstract:
1. A repeater that transmits an optical signal using wave division multiplexing, comprising: a demultiplexing unit that separates a plurality of channels contained in the optical signal; an adjusting unit that adjusts at least optical power of each of the channels according to a control signal; a multiplexing unit that outputs a multiple wavelength signal in which the channels are multiplexed; and a monitoring unit that determines a modulation scheme and a bit rate of the optical signal for each of the channels, wherein the monitoring unit includes a memory unit that stores relationships between the modulation schemes, the bit rates, peak values, and optical power integration values, and the monitoring unit generates the control signal for the modulation scheme and the bit rate of the optical signal for each of the channels, the modulation scheme and the bit rate being determined by referring to the predetermined relationships stored in the memory unit.