Light source and silicon photonics system including the same

A silicon photonics system comprising:

• a light source;
• and
• an optical waveguide through which light emitted from the light source travels,
• wherein the light source comprises:
• a silicon substrate comprising a groove;
• an insulating layer provided on the silicon substrate and comprising a trench above the groove;
• a buffer layer filling the groove of the silicon substrate and the trench of the insulating layer;
• a light-emitting structure layer provided on the buffer layer and comprising a quantum well structure layer;
• a first lattice structure provided on the insulating layer and comprising a plurality of first lattices having a first arrangement period;
• and
• a second lattice structure provided on the insulating layer and comprising a plurality of second lattices having a second arrangement period,
• wherein the first lattice structure and the second lattice structure are spaced apart, and
• wherein the light-emitting structure layer is provided between the first lattice structure and the second lattice structure.

A light source, comprising:

• a base layer comprising a groove;
• a first insulating layer;
• a second insulating layer provided above the first insulating layer and comprising a first trench, the first trench being above the groove;
• a buffer layer filling the groove and the first trench;
• a light-emitting structure layer provided on the buffer layer and comprising a quantum well structure layer;
• a first lattice structure provided on the second insulating layer and comprising a plurality of first lattices having a first arrangement period;
• and
• a second lattice structure provided on the second insulating layer and comprising a plurality of second lattices having a second arrangement period,
• wherein the first lattice structure and the second lattice structure are spaced apart, and
• wherein the light-emitting structure layer is provided between the first lattice structure and the second lattice structure.