Optical router and terminal devices therewith based on dynamic wavelength assignment

An optical router based on dynamic wavelength assignment and for receiving a plurality of data signals and an aggregate control signal from a plurality of servers, the optical router comprising:

• a modulation module comprising:
• an optical coupler;
• and
• a plurality of modulating units in one-to-one correspondence with the servers, each of the modulating units adapted for receiving the data signal from the corresponding server;
• and
• a wavelength selection module comprising:
• a multi-wavelength light source for generating an input carrier having a plurality of wavelengths;
• and
• a carrier processing unit for separating the input carrier into a plurality of carriers and for guiding the carriers corresponding to the servers to the corresponding modulating units based on the aggregate control signal;
• wherein each of the carriers has one of the wavelengths, each of the modulating units is further adapted for modulating the carrier guided to the modulating unit into an optical signal based on the received data signal, and the optical coupler is adapted for aggregating the optical signals into an aggregate optical signal.

A terminal device with optical routing based on dynamic wavelength assignment, the terminal device comprising:

• a plurality of serving modules, each of which comprises a reflective modulator and a server adapted for generating an individual control signal and a data signal, the individual control signals forming an aggregate control signal;
• a guiding module comprising an optical coupler and a plurality of optical circulators in one-to-one correspondence with to the serving modules;
• and
• a wavelength selection module comprising:
• a multi-wavelength light source for generating an input carrier having a plurality of wavelengths;
• and
• a carrier processing unit for separating the input carrier into a plurality of carriers and for guiding the carriers corresponding to the servers to the corresponding optical circulators based on the aggregate control signal, each of the carriers having one of the wavelengths;
• wherein each of the optical circulators has a first port, a second port, and a third port, the first port adapted for receiving the carrier from the carrier processing unit and for guiding the carrier to the reflective modulator through the second port;
• wherein the reflective modulator is activated upon receiving the carrier, the activated reflective modulator adapted for modulating the received carrier into an optical signal based on the data signal;
• wherein the second port is adapted for guiding the optical signal to the optical coupler through the third port, and the optical coupler is adapted for aggregating the optical signals into an aggregate optical signal.