ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,598, issued on May 6, was assigned to Teknologian tutkimuskeskus VTT Oy (Espoo, Finland).
"Polarizing device" was invented by Lauri Lehtimaki (VTT, Finland), Mikko Harjanne (VTT, Finland) and Matteo Cherchi (VTT, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polarizing device includes: a first waveguide to guide input light, a second waveguide to guide TE-polarized light,wherein the second waveguide includes a tapered input portion to polarization-selectively couple TE-polarized light from the first waveguide to the second waveguide, wherein the tapered input portion symmetrically overlaps the first waveguide, and the thickness of the tap...