Optical control device, optical transmission device, and signal light setting method

A signal light setting method comprising:

• receiving test light having a wavelength different from that of signal light;
• modulating the test light by using transmission characteristics information relating to an optical transmission system that transmits the signal light via an optical transmission line, and generating test modulation light;
• delivering the test modulation light;
• acquiring the transmission characteristics information from the test modulation light being received;
• and
• controlling continuous light having a wavelength different from that of the test light by using setting information associated with the transmission characteristics information, and generating the signal light.

An optical control device comprising:

• a storage configured to store transmission characteristics information in advance, the transmission characteristics information relating to an optical transmission system that transmits signal light via an optical transmission line;
• a first connector configured to receive the signal light and test light having a wavelength different from that of the signal light;
• an optical modulator configured to modulate the test light by using the transmission characteristics information, and to generate test modulation light;
• a second connector configured to deliver the test modulation light;
• a first wavelength selector configured to deliver the signal light and to transmit the test light;
• a second wavelength selector configured to transmit the signal light and block the test light;
• and
• an optical splitter configured to split any one of the signal light and the test light and deliver the split light to the first wavelength selector the second wavelength selector.