VERTICAL INTEGRATION OF A HYBRID OPTICAL SOURCE

摘要

A hybrid optical source includes a substrate with an optical amplifier (such as a III-V semiconductor optical amplifier). The substrate is coupled at an angle (such as an angle between 0 and 90°) to a silicon-on-insulator chip. In particular, the substrate may be optically coupled to the silicon-on-insulator chip by an optical coupler (such as a diffraction grating or a mirror) that efficiently couples (i.e., with low optical loss) an optical signal into a sub-micron silicon-on-insulator optical waveguide. Moreover, the silicon-on-insulator optical waveguide optically couples the light to a reflector to complete the hybrid optical source.

主权项

1. A hybrid optical source, comprising:
a substrate having a surface, wherein the substrate includes:
an optical waveguide, having an end and a second end, configured to convey an optical signal;a reflector, optically coupled to the end of the optical waveguide, configured to partially reflect a wavelength in the optical signal; andan optical coupler, optically coupled to the second end of the optical waveguide, configured to redirect the optical signal into and out of a plane of surface; and a second substrate disposed at an angle relative to the plane, wherein the second substrate is optically coupled to the optical coupler, and wherein the second substrate includes:
a semiconductor optical amplifier, optically coupled to the optical coupler, wherein the semiconductor optical amplifier is defined in a semiconductor other than silicon and has an edge and a second edge, and wherein the semiconductor optical amplifier is configured to provide the optical signal at the edge; anda reflective coating, disposed on the second edge of the semiconductor optical amplifier, configured to reflect the optical signal.