Optical modulator

An optical modulator, comprising:

• a laminated substrate including a plurality of waveguides disposed a threshold distance from a surface of the laminated substrate,
• the laminated substrate including a conductor layer to suppress radio frequency (RF) dielectric modes and parallel-plate modes within the laminated substrate,
• where the conductor layer is a floating conductor grid of floating conductor segments and the floating conductor segments are connected by a conductor;
• a plurality of ground electrodes disposed on the surface of the laminated substrate;
• and
• a plurality of signal electrodes disposed on the surface of the laminated substrate.

An optical modulator, comprising:

• a set of ground electrodes;
• a signal electrode corresponding to and parallel to the set of ground electrodes;
• a set of waveguides corresponding to and parallel to the set of ground electrodes,
• where a first waveguide, of the set of waveguides, is disposed underneath a ground electrode, of the set of ground electrodes, relative to a surface of the optical modulator, and
• where a second waveguide, of the set of waveguides, is disposed underneath the signal electrode relative to the surface of the optical modulator;
• a first substrate disposed underneath the set of ground electrodes and the signal electrode relative to the surface of the optical modulator;
• a second substrate disposed underneath at least a portion of the first substrate relative to the surface of the optical modulator;
• and
• a floating grid conductor layer including a plurality of intersecting floating conductor segments disposed between the first substrate and the second substrate.