Patent ID: 9042739
Filing Date: 2015-05-26
Classification: H04B,H04J

Abstract:
1. A repeater, comprising: a reception part configured to receive an optical signal transmitted by wavelength division multiplexing from a preceding repeater in a path from a source to a destination; a determination part configured to determine a channel allocation of a plurality of channels in the signal received by the reception part by determining a bit rate and a modulation technique with respect to each of the plural channels in the received signal; and a detection part configured to detect a prohibited channel not to be included in the optical signal to be transmitted from the repeater, based on the channel allocation of the plural channels and a predetermined criterion regarding the channel allocation of the plural channels, wherein the determination part is configured to determine the bit rate and the modulation technique based on optical spectrum information obtained by analyzing a spectrum of the optical signal transmitted from the preceding repeater.