METHOD AND DEVICE FOR GENERATING A SYNTHETIC WAVELENGTH

摘要

In a method for generating a synthetic wavelength, particularly for an interferometric distance measuring setup, with a primary laser source defining a primary frequency U₀ and at least a first sideband frequency U₁ of the primary frequency U₁, laser radiation with the first sideband frequency O1 and a corresponding first wavelength is provided wherein the first sideband frequency U₁ 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.