Method and device for generating a synthetic wavelength
US8289523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2007 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jun 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0656
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method for generating a synthetic wavelength, particularly for an interferometric distance measuring setup, with a primary laser source defining a primary frequency υ0 and at least a first sideband frequency υ1 of the primary frequency υ0, laser radiation with the first sideband frequency υ1 and a corresponding first wavelength is provided wherein the first sideband frequency υ1 is continuously shifted, particularly by modulating the primary laser source. The synthetic wavelength is generated by combining the first wavelength and a second wavelength which is defined by the primary laser source, particularly by superposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.