Method and device for automatically locking repetition frequency and carrier-envelop offset frequency of optical frequency comb
US12424814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2025 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | May 15, 2045 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F5/14
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.