Oscillator for generating a signal comprising a terahertz-order frequency using the beat of two optical waves
US9019019B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 24, 2011 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | May 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/13
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention concerns an oscillator generating a wave composed of a frequency of on the order of terahertz from a beat of two optical waves generated by a dual-frequency optical source. The oscillator includes a modulator the transfer function of which is non-linear for generating harmonics with a frequency of less than one terahertz for each of the optical waves generated by the dual-frequency optical source, an optical detector able to detect at least one harmonic for each of the optical waves generated by the dual-frequency optical source and transforming the harmonics detected into an electrical signal, a phase comparator for comparing the electrical signal with a reference electrical signal, and a module for controlling at least one element of the dual-frequency optical source with a signal obtained from the signal resulting from the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.