Optical transceiver and control method

An optical transceiver comprising:

• a wavelength-tunable transmitter configured to transmit an optical transmission signal;
• a wavelength-tunable receiver configured to receive an optical reception signal;
• an input terminal configured to input a wavelength selection signal as a control voltage of any one of a plurality of predetermined voltage values;
• wherein the a wavelength table configured to store a plurality of combinations of a transmission wavelength and a reception wavelength, each of the plurality of combinations being correlated with a respective voltage value of the plurality of predetermined voltage values;
• and
• a controller configured to select one combination of the transmission wavelength and the reception wavelength, which corresponds to the control voltage as the wavelength selection signal, from the wavelength table, and performs transmission wavelength control for setting the selected transmission wavelength in the wavelength-tunable transmitter as a wavelength of the optical transmission signal and reception wavelength control for setting the selected reception wavelength in the wavelength-tunable receiver as a wavelength of the optical reception signal.

A control method in an optical transceiver including a wavelength-tunable transmitter that transmits an optical transmission signal, a wavelength-tunable receiver that receives an optical reception signal, a wavelength table that stores a plurality of combinations of a transmission wavelength and a reception wavelength, and an input terminal through which a wavelength selection signal is input, each of the plurality of combinations being correlated with a respective number of the control pulses, the control method comprising:

• inputting the wavelength selection signal as one or more control pulses:
• selecting one combination of the transmission wavelength and the reception wavelength, which corresponds to the number of the control pulses as the wavelength selection signal, from the wavelength table;
• setting the selected transmission wavelength in the wavelength-tunable transmitter as a wavelength of the optical transmission signal;
• and
• setting the selected reception wavelength in the wavelength-tunable receiver as a wavelength of the optical reception signal.

A control method in an optical transceiver including a wavelength-tunable transmitter that transmits an optical transmission signal, a wavelength-tunable receiver that receives an optical reception signal, a wavelength table that stores a plurality of combinations of a transmission wavelength and a reception wavelength, and an input terminal through which a wavelength selection signal is input, each of the plurality of combinations being correlated with a respective voltage value of the plurality of predetermined voltage values, the control method comprising:

• inputting the wavelength selection signal as a control voltage of any one of a plurality of predetermined voltage values;
• selecting one combination of the transmission wavelength and the reception wavelength, which corresponds to the control voltage as the wavelength selection signal, from the wavelength table;
• setting the selected transmission wavelength in the wavelength-tunable transmitter as a wavelength of the optical transmission signal;
• and
• setting the selected reception wavelength in the wavelength-tunable receiver as a wavelength of the optical reception signal.