Patent ID: 9419720
Filing Date: 2016-08-16
CPC Classification: G02F,H04B,H04J

Claim Text:
1. An optical signal transmitter comprising: an intensity modulation unit configured to adjust an intensity of a first wavelength component and a second wavelength component, a first wavelength of the first wavelength component being different from a second wavelength of the second wavelength component; a demultiplexer configured to extract the first wavelength component and the second wavelength component; a first modulation unit configured to generate a first modulated optical signal from the first wavelength component obtained by the demultiplexer; a second modulation unit configured to generate a second modulated optical signal from the second wavelength component obtained by the demultiplexer; a multiplexer configured to multiplex the first modulated optical signal and the second modulated optical signal to generate a multiplexed optical signal; and a control unit configured to control the intensity modulation unit so that optical powers of the first modulated optical signal and the second modulated optical signal become approximately equal to each other.