Generating a plurality of pulse trains from a micro comb laser

A system comprising:

• a laser source for emitting a light wave;
• a mechanism for generating a plurality of coherent subcarriers from the light wave, each of the plurality of coherent subcarriers having a subcarrier frequency out of a collection of carrier frequencies, wherein the collection of subcarrier frequencies are equally spaced;
• at least a first filter for filtering a first group of subcarriers having consecutive frequencies of the collection of subcarrier frequencies, thereby obtaining a first sequence of equidistant pulses in time domain;
• at least a second filter for filtering a second group of subcarriers having consecutive frequencies of the collection of subcarrier frequencies, thereby obtaining a second sequence of equidistant pulses in time domain;
• at least one item selected from the group consisting of:
• an electrical to optical convertor for converting electrical data into optical data and modulating the first sequence of equidistant pulses or the second sequence of equidistant pulses and a semiconductor optic amplifier for amplifying the light wave to obtain at least one optical data signal;
• a variable optical attenuator for transforming the first sequence of equidistant pulses or the second sequence of equidistant pulses into a single photon sequence;
• and
• a semiconductor optical amplifier for amplifying the light wave, thereby creating an optical clock signal, and
• an array waveguide grating for multiplexing the at least one optical data signal, the single photon sequence or the optical clock signal into a unified light beam.