Chiplet-based optical wafer-scale network switch

An apparatus for switching comprising:

• a photonic wafer-scale interposer (PWSI), wherein the PWSI includes a plurality of waveguides, and wherein a front side of the PWSI is bonded to at least two switching chiplets;
• a first switching chiplet within the at least two switching chiplets, wherein the first switching chiplet is coupled to a first optical emitter;
• a second switching chiplet within the at least two switching chiplets;
• an optical coupler, wherein the optical coupler couples light from the first optical emitter to a first waveguide within the plurality of waveguides;
• and
• a photodiode, wherein the photodiode couples light from the first waveguide to the second switching chiplet.

A system for switching comprising:

• a photonic wafer-scale interposer (PWSI), wherein the PWSI includes a plurality of waveguides, and wherein a front side of the PWSI is bonded to at least two switching chiplets;
• a first switching chiplet within the at least two switching chiplets, wherein the first switching chiplet is coupled to a first optical emitter;
• a second switching chiplet within the at least two switching chiplets;
• an optical coupler, wherein the optical coupler couples light from the first optical emitter to a first waveguide within the plurality of waveguides;
• and
• a photodiode, wherein the photodiode couples light from the first waveguide to the second switching chiplet, wherein the system, when a data request from a sending node within an external network is sent to the first switching chiplet, is configured to:
• switch the data request to the second switching chiplet;
• and
• transfer the data request, by the second switching chiplet, to a receiving node within the external network.