US Patent Issued to Cisco Technology on Nov. 25 for "Thermo-optic phase shifter systems and methods" (Massachusetts Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,181, issued on Nov. 25, was assigned to Cisco Technology Inc. (San Jose, Calif.).

"Thermo-optic phase shifter systems and methods" was invented by Xue Huang (Maynard, Mass.) and Leonard Ketelsen (Maynard, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In part, the disclosure relates to opto-electrical system. The system may include a waveguide defining an optical input and an optical output; a thermo-optic phase shifter (TOPS) that includes a first electrical contact and a second electrical contact, and a resistive heater in electrical communication with the first electrical contact and the second electrical contact, the TOPS configured to cha...