Systems and methods for fast wavelength selection in an optical network

A system in an optical network, comprising:

• an optical demultiplexer (DEMUX) having a first input port and a plurality of output ports, the first input port configured to receive a first set of multi-wavelength signals and the plurality of output ports configured to output a plurality of group of signals, each group of signals being output from a respective port from the plurality of output ports depending on a wavelength channel;
• a plurality of MRR channel selectors, each MRR channel selector being coupled to a respective port from the plurality of output ports of the optical DEMUX and configured to select a signal of a specific wavelength from a respective group of signals from the coupled respective port;
• an optical MUX device or a reflector device coupled to the plurality of MRR channel selectors and configured to output a final optical signal from the output of the plurality of MRR channel selectors;
• and
• a controller coupled to the plurality of MRR channel selectors, wherein the controller is configured to control the plurality of MRR channel selectors to select the final optical signal.

A method for selecting a signal of a specific wavelength from a set of multi-wavelength signals, comprising:

• receiving a first set of multi-wavelength signals by a first optical DEMUX device;
• separating the first set of multi-wavelength signals into a plurality of groups of signals depending on a wavelength channel by the first optical DEMUX device;
• selecting a group of signals from the plurality of groups of signals by a SOA;
• outputting the selected group of signals by a first optical MUX device that is coupled to the first optical DEMUX device and the SOA;
• receiving the selected group of signals by a wavelength selector system that is coupled to the first optical MUX device;
• and
• selecting and outputting a final optical signal of a specific wavelength from the selected group of signals by the wavelength selector system.