Optical transceiver and wavelength initialization method using optical transceiver

An optical transceiver, comprising:

• an optical receiver to receive a downstream signal using a first wavelength selective filter;
• a control unit to control the first wavelength selective filter to initialize a wavelength, so that the optical receiver receives a maximum optical power;
• and
• an optical transmitter to transmit an upstream signal using a second wavelength selective filter connected to a partial mirror.
• wherein the second wavelength selective filter is controlled by the control unit, together with the first wavelength selective filter.

An optical transceiver is connected to the splitter of optical link, comprising:

• an optical receiver to receive a downstream signal using a ith wavelength of first wavelength band;
• and
• an optical transmitter to transmit an upstream signal using a ith wavelength of second wavelength band,
• wherein the difference between the ith wavelength of the first wavelength band and the ith wavelength of the second wavelength band is fixed or changed.

An optical transceiver, comprising:

• an optical receiver to receive a downstream signal in a first wavelength of first wavelength band;
• a control unit to control a first wavelength selective filter so that the optical receiver receives a maximum optical power;
• and
• an optical transmitter to transmit an upstream signal using a second wavelength selective filter in a second wavelength of second wavelength band,
• wherein the second wavelength selective filter is controlled by the control unit, together with the first wavelength selective filter.

A wavelength initialization method performed by an optical transceiver comprising an optical transmitter, an optical receiver, and a control unit, the wavelength initialization method comprising:

• receiving, by the optical receiver, a downstream signal using a wavelength selective filter comprising a first waveguide Bragg grating (WBG);
• controlling, by the control unit, the first WBG to initialize a wavelength, so that the optical receiver receives a maximum optical power;
• and
• transmitting, by the optical transmitter, an upstream signal using a wavelength selective filter comprising a second WBG,
• wherein the second WBG is controlled by the control unit, together with the first WBG.

A wavelength initialization method performed by an optical transceiver comprising an optical transmitter, an optical receiver, and a control unit, the wavelength initialization method comprising:

• receiving, by the optical receiver, a downstream signal using the first wavelength selective filter;
• controlling, by the control unit, the first wavelength selective filter to initialize a wavelength, so that the optical receiver receives a maximum optical power;
• and
• transmitting, by the optical transmitter, an upstream signal using a second wavelength selective filter connected to a partial mirror,
• wherein the second wavelength selective filter is controlled by the control unit, together with the first wavelength selective filter.

A wavelength initialization method performed by an optical transceiver comprising an optical transmitter, and an optical receiver, the wavelength initialization method comprising:

• receiving, by the optical receiver, a downstream signal using a ith wavelength of first wavelength band;
• and
• transmitting by the optical transmitter, an upstream signal using the ith wavelength of second wavelength band,
• wherein the difference between the ith wavelength of the first wavelength band and the ith wavelength of the second wavelength band is fixed or changed.

A wavelength initialization method performed by an optical transceiver comprising an optical transmitter, an optical receiver, and a control unit, the wavelength initialization method comprising:

• receiving, by the optical receiver, a downstream signal in a first wavelength of first wavelength band;
• controlling, by the control unit, a first wavelength selective filter so that the optical receiver receives a maximum optical power;
• and
• transmitting, by the optical transmitter, an upstream signal using a second wavelength selective filter in a second wavelength of second wavelength band,
• wherein the second wavelength selective filter is controlled by the control unit, together with the first wavelength selective filter.