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:
Sep. 23, 2025
Filed:
May. 15, 2025
Beijing Aerospace Institute for Metrology and Measurement Technology, Beijing, CN;
Zhitao Zhang, Beijing, CN;
Tieli Zhang, Beijing, CN;
Yinxiao Miao, Beijing, CN;
Xiaoqiang Gao, Beijing, CN;
Beibei Wang, Beijing, CN;
Hao Liu, Beijing, CN;
Yongyao Xu, Beijing, CN;
Weiwei Wu, Beijing, CN;
Yan Song, Beijing, CN;
Abstract
A method for automatically locking frequency of an optical frequency comb is performed through locking the microwave repetition frequency signal and the microwave carrier-envelop offset frequency signal of the optical frequency comb. The microwave repetition frequency signal is subjected to filtering, frequency division, and phase discrimination with a first reference signal to obtain a first error signal. A first output frequency of the frequency synthesizer is adjusted based on a direction of the first error signal and a first voltage signal. The microwave offset frequency signal is subjected to filtering, frequency division, and phase discrimination with a second reference signal to obtain a second error signal. A second output frequency of the frequency synthesizer is adjusted based on a direction of the second error signal and a second voltage signal.