US Patent Issued on May 19 for "Piezo-tuned nonplanar ring oscillator with GHz tuning range and 100 kHz bandwidth" (California, Maryland Inventors)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,716, issued on May 19.

"Piezo-tuned nonplanar ring oscillator with GHz tuning range and 100 kHz bandwidth" was invented by Thomas James Kane (Menlo Park, Calif.), Kenji Numata (Laurel, Md.) and John Lawrence Nightingale (Portola Valley, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A monolithic nonplanar ring oscillator (NPRO) laser with a large piezo-electric tuning range and high frequency slew rate, denoted as a MuNPRO, is described. A tuning range of 3.5 GHz with 192 volts applied, corresponding to a tuning coefficient of 18.2 MHz/volt was experimentally demonstrated. This performance was achieved by making the solid-state gain element sm...