The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Apr. 28, 2023
The Trustees of Columbia University IN the City of New York, New York, NY (US);
Yun Zhao, New York, NY (US);
Jae K Jang, New York, NY (US);
Yoshitomo Okawachi, River Edge, NJ (US);
Bok Young Kim, New York, NY (US);
Alexander L Gaeta, New York, NY (US);
Michal Lipson, New York, NY (US);
The Trustees of Columbia University in the City of New York, New York, NY (US);
Abstract
Systems, methods, and devices for generating tunable low frequency signals, such as microwave and radiofrequency signals are disclosed. A first waveguide in optical communication with a first ring resonator can be configured to receive a light input and generate frequencies via optical parametric oscillation. A second waveguide with second ring resonator can receive the frequencies and optically synchronize the frequencies via optical frequency division to generate a low frequency signal. One or more heating elements can be connected to each ring resonator to tune the resonators and reduce noise associated with the low frequency signal.