Transmitter-receiver with integrated modulator array and hybrid bonded multi-wavelength laser array

A method, comprising:

• lasing a first optical beam in a first optical cavity defined along a first optical waveguide disposed in a single layer of semiconductor material;
• lasing second optical beam within a second optical cavity defined along a second optical waveguide disposed in the single layer of semiconductor material, wherein the first and second optical waveguides are included in a plurality of optical waveguides disposed in the single layer of semiconductor material, wherein a single bar of gain medium material is adjoining the single layer of semiconductor material across the plurality of optical waveguides defining a gain medium-semiconductor material interface along each of the plurality of optical waveguides;
• and
• modulating the first and second optical beams with respective first and second optical modulators disposed in the single layer of semiconductor material optically coupled to the first and second optical waveguides.

An optical system, comprising:

• an optical chip including an array of optical lasers, the optical chip including:
• a plurality of optical waveguides disposed in a single layer of semiconductor material, wherein each one of the plurality of optical waveguides includes an optical cavity defined along the optical waveguide;
• a single bar of gain medium material adjoining the single layer of semiconductor material across the plurality of optical waveguides defining a gain medium-semiconductor material interface along each of the plurality of optical waveguides;
• a plurality of optical modulators disposed in the single layer of semiconductor material, each one of the plurality of optical modulators optically coupled to a respective one of the plurality of optical waveguides to modulate a respective optical beam directed from the optical cavity defined within the respective optical waveguide;
• a multiplexer disposed in the single layer of semiconductor material, the multiplexer optically coupled to the plurality of optical modulators to combine selected wavelengths of optical beams received from each respective one of the plurality of optical modulators;
• an external optical receiver optically coupled to the receive the combined optical beams from the multiplexer;
• and
• an optical fiber optically coupled between the external optical receiver and an output of the multiplexer.