Telemetry system using frequency combs

A telemetry system for one or more downhole operations, comprising:

• one or more downhole tools communicatively coupled to an information handling system, wherein the one or more downhole tools are deployed downhole;
• a splitter coupled to a fiber optic line, wherein the splitter splits a first coherent light via the fiber optic line from a surface transmitter into a plurality of wavelengths;
• one or more modulators coupled to the splitter, wherein the one or more modulators receive one of the plurality of wavelengths, and wherein each of the one or more downhole tools is associated with one of the one or more modulators;
• one or more downhole data associated with the one or more downhole tools, wherein the associated one of the one or more modulators encodes the one or more downhole data onto the associated received one of the plurality of wavelengths to form one or more encoded wavelengths;
• and
• a combiner coupled to each of the one or more modulators, wherein the combiner combines the one or more encoded wavelengths, and wherein the combiner transmits the combined one or more encoded wavelengths to an information handling system via the fiber optic line.

A non-transitory computer readable medium storing a program that, when executed, causes a processor to:

• receive, at a splitter, a first coherent light from a transmitter positioned at a surface of a subterranean formation, wherein the splitter is located downhole;
• split, by the splitter, the first coherent light into a plurality of wavelengths;
• encode, by one or more modulators associated with one or more downhole tools, downhole information onto at least one of the plurality of wavelengths;
• combine, by a combiner, the plurality of wavelengths into a second coherent light;
• and
• transmit the second coherent light to a receiver positioned at the surface.