Patent ID: 8818191
Filing Date: 2014-08-26
Classification: H04J

Abstract:
1. A method for reallocating a wavelength in an optical wavelength multiplexer transmission system, the method comprising: switching a supply of a first channel electric signal from a first optical transmitter device to a second optical transmitter device, the first optical transmitter device converting the first channel electric signal into an optical signal of a first wavelength, and the second optical transmitter device converting the first channel electric signal into an optical signal of a second wavelength differing from the first wavelength; transmitting the optical signal of the second wavelength output from the second optical transmitter device; gradually shifting, based on a second channel electric signal, a wavelength of an optical signal output from a third optical transmitter device from a third wavelength toward the first wavelength; transmitting the optical signal having the first wavelength; setting the first optical transmitter device to transmit the optical signal of the third wavelength; switching the supply of the first channel electric signal from the second optical transmitter device to the first optical transmitter device utilizing electric signal switching; and transmitting the optical signal of the third wavelength output from the first optical transmitter device.