ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,386,211, issued on Aug. 12, was assigned to Nokia Solutions and Networks Oy (Espoo, Finland).

"Silicon optical phase shifter with a series of P-N junctions" was invented by Jianfeng Ding (New York).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus includes a silicon (Si) optical phase shifter. In an embodiment, the optical phase shifter comprises a planar optical waveguide having a silicon optical core, and a pair of biasing electrodes located along opposite sides of a segment of the silicon optical core. The segment of the silicon optical core comprises a series of p-n junctions. The series extends in a direction transverse to an optical propa...