Systems and methods for optical injection-locking in an access network

An aggregation transmitter, comprising:

• a primary laser source outputting at least one narrow linewidth light signal;
• an external secondary laser source including (i) a secondary laser cavity configured to receive the at least one narrow linewidth signal injected therein from the primary laser source, and (ii) an emitting region configured to output a secondary light signal injection locked to the injected narrow linewidth light signal from the primary laser source at a stable detuning frequency based on a steady-state photon number, a steady-state phase, and a steady-state carrier number of the external secondary laser source;
• and
• a splitter separating the primary laser source from the external secondary laser source,
• wherein the steady-state photon number, the steady-state phase, and the steady-state carrier number represent substantially no time variation in a photon number, a phase, and a carrier number of the external secondary laser source, respectively.