An optical engine (11) for providing a point-to-point optical communications link between devices. The optical engine (11) includes a light source (24) optically coupled to a modulation chip (6) and configured to generate an optical beam. The optical engine further comprises a modulator (21) carried on the modulation chip and configured to modulate the optical beam. The optical engine further includes a waveguide (30), formed in a plane parallel to the plane of the substrate, and configured to guide the modulated optical beam from the modulator to at least one of a plurality of out-of-plane couplers (40) grouped in a defined region (48) of the modulation chip. The out-of-plane coupler can couple the modulated optical beam to an optical device.