Abstract: An electro-optic modulator may include a radio frequency (RF) modulation region including a first optical waveguide, a second optical waveguide, a first set of electrode segments, a second set of electrode segments, and a conductive strap. The first optical waveguide may propagate a first optical signal. The second optical waveguide may propagate a second optical signal. The first set of electrode segments may apply a first RF signal to the first optical waveguide. The second set of electrode segments may apply a second RF signal to the second optical waveguide. The conductive strap may enable photocurrent generated in the first optical waveguide and the second optical waveguide and flowing through a doped layer below the first optical waveguide and the second optical waveguide to be extracted from the electro-optic modulator. The conductive strap may be ohmically contacted with the doped layer.

Abstract: An electro-optic modulator may include a radio frequency (RF) modulation region including a first optical waveguide, a second optical waveguide, a first set of electrode segments, a second set of electrode segments, and a conductive strap. The first optical waveguide may propagate a first optical signal. The second optical waveguide may propagate a second optical signal. The first set of electrode segments may apply a first RF signal to the first optical waveguide. The second set of electrode segments may apply a second RF signal to the second optical waveguide. The conductive strap may enable photocurrent generated in the first optical waveguide and the second optical waveguide and flowing through a doped layer below the first optical waveguide and the second optical waveguide to be extracted from the electro-optic modulator. The conductive strap may be ohmically contacted with the doped layer.

Abstract: Example embodiments relate to active-passive waveguide photonic systems. An example embodiment includes a monolithic integrated active/passive waveguide photonic system. The system includes a substrate having positioned thereon at least one active waveguide and at least one passive waveguide. The at least one active waveguide and the at least one passive waveguide are monolithically integrated and are arranged for evanescent wave coupling between the waveguides. The at least one active waveguide and the at least one passive waveguide are positioned so that at least a portion of each waveguide does not overlap the other waveguide, both in a height direction and in a lateral direction with respect to the substrate.