US Patent Issued to Cisco Technology on Dec. 2 for "Non-resonant grating based multi-mode multi-pass tunable waveguide" (American, German Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,395, issued on Dec. 2, was assigned to Cisco Technology Inc. (San Jose, Calif.).

"Non-resonant grating based multi-mode multi-pass tunable waveguide" was invented by Jock T. Bovington (Koenigstein im Taunus, Germany) and Donald J. Adams (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments herein describe an electro-optic waveguide having a multi-mode multi-pass phase shifter (MMPS) tuner, one or more two-mode Bragg gratings, and one or more selective evanescent couplers. An input signal having a fundamental mode is reflected by the one or more Bragg gratings and tuned by the MMPS tuner. In this manner, the electro-optic wavegu...