US Patent Issued to NATIONAL RESEARCH COUNCIL OF CANADA on Sept. 1 for "Vertically tapered spot size converter and method for fabricating the same" (Canadian Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,724,199, issued on Sept. 1, was assigned to NATIONAL RESEARCH COUNCIL OF CANADA (Ottawa).

"Vertically tapered spot size converter and method for fabricating the same" was invented by Omid Salehzadeh Einabad (Orleans, Canada), Christina Elliott (Kanata, Canada), Brian Rioux (Ottawa), Nicaulas Sabourin (Orleans, Canada) and Martin Vachon (Gatineau, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a method for fabricating a vertically tapered spot-size converter on a substrate, comprising: growing a waveguide core on the substrate; coating the waveguide core with a photoresist layer; placing a photomask having patterns at a negative ...