2015-05-042015-05-042013-11-12Xu, Qianfan, "Dual-ring silicon electro-optic modulator." Patent US8582937B2. issued 2013-11-12. Retrieved from https://hdl.handle.net/1911/80139.https://hdl.handle.net/1911/80139A device, system, and method for the electro-optic modulation of light. The device includes a substrate having a first ring waveguide and a second ring waveguide on the surface. The device includes a first p-doped region inside the first ring waveguide and a second p-doped region inside the second ring waveguide. The device includes a first n-doped region interposed between the first ring waveguide and the second ring waveguide, a second n-doped region outside the first ring waveguide, and a third n-doped region out the second ring waveguide. The device includes a first linear waveguide located on the surface adjacent to the first ring waveguide and the second ring waveguide. The device includes a fourth n-doped region on the surface located adjacent to the first linear waveguide. The device includes a control circuit configured to modulate light in the first linear waveguide using a voltage source and electrical connections.18 ppengUtility patentUS8582937B2