US Patent 9134489 Optical engine for active optical cable

An optical engine is provided for an active optical cable. The optical engine comprises a substrate having electro-optical (EO) components coupled or connected to a same side of the substrate. The optical engine further comprises a molded optical structure (MOS) that couples or connects to the substrate and to optical fibers of the optical cable. The MOS interfaces with the substrate at a position adjacent the EO components. Optical paths through the MOS include a lens system comprising two optical power surfaces or lenses and one reflecting surface. The MOS lens system enables alignment of the optical fibers in a direction orthogonal to the optical axis established by the EO components.