Methods of injection locking for multiple optical source generation

Coherent optical injection locking (COIL) system, comprising:

• a plurality of optical source generators each having:
• a child laser;
• and
• an optical circulator coupled with the child laser to direct one of a plurality of injection locking signals to the child laser to cause the child laser to generate an optical source output that replicates the one injection locking signal;
• and
• an optical demultiplexer for demultiplexing (a) a first of a plurality of different wavelengths of an optical comb source to form a first of the plurality of injection locking signals and (b) a second of a plurality of different wavelengths of an optical comb source to form a second of the plurality of injection locking signals;
• each of the plurality of optical source generators further comprising a power splitter coupled with the optical circulator;
• the plurality of optical source generators forming at least a first cascaded group and a second cascaded group;
• a first optical source generator of the first cascaded group being coupled with the optical demultiplexer to receive the first of the plurality of injection locking signals, the power splitter splitting an optical output from the child laser to form the optical source output and one of the plurality of injection locking signals coupled to a second optical source generator of the first cascaded group;
• and
• a first optical source generator of the second cascaded group being coupled with the optical demultiplexer to receive the second of the plurality of injection locking signals, the power splitter splitting an optical output from the child laser to form the optical source output and another one of the plurality of injection locking signals coupled to a second optical source generator of the second cascaded group.

An injection locking method for multiple optical sources, comprising:

• receiving a single optical source;
• injection locking a plurality of optical source generators using the optical source;
• and
• generating, at each of the plurality of optical source generators, an optical source output having optical characteristics the same as the optical source;
• feeding, via a first optical circulator of a first optical source generator of the plurality of optical source generators, the optical source into a resonator of a child laser of the first optical source generator to generate a first optical output;
• splitting the first optical output, using an optical power splitter, into a first optical source output and a first injection locking output;
• and
• feeding the first injection locking output into a second of the plurality of optical source generators.

An injection locking method for multiple optical sources, comprising:

• receiving a single optical source;
• injection locking a plurality of optical source generators using the optical source;
• generating, at each of the plurality of optical source generators, an optical source output having optical characteristics the same as the optical source;
• demultiplexing at least a first wavelength and a second wavelength of the optical source into a respective first injection locking signal and a second injection locking signal;
• feeding, via a first optical circulator of a first optical source generator of the plurality of optical source generators, the first injection locking signal into a first resonator of a first child laser of the first optical source generator to generate a first optical output at the first wavelength;
• splitting the first optical output, using a first optical power splitter of the first optical source generator, into a first optical source output and a first injection locking output;
• feeding, via a second optical circulator of a second optical source generator of the plurality of optical source generators, the first injection locking output into a second resonator of a second child laser of the second optical source generator to generate a second optical output at the first wavelength;
• feeding, via a third optical circulator of a third optical source generator of the plurality of optical source generators, the second injection locking signal into a third resonator of a third child laser of the third optical source generator to generate a third optical output at the second wavelength;
• splitting the third optical output, using a second optical power splitter of the third optical source generator, into a third optical source output and a second injection locking output;
• and
• feeding, via a fourth optical circulator of a fourth optical source generator of the plurality of optical source generators, the second injection locking output into a fourth resonator of a fourth child laser of the fourth optical source generator to generate a fourth optical output at the second wavelength.