Patent ID: 8743919

Claim:
Method for generating coherent-phase light having a predefinable frequency value (ν Soll ), comprising the steps of (a) generating working light with a working frequency (ν SL ), (b) generating a frequency comb ( 10 ), which is a light field that consists of equidistant coherent-phase spectral lines, (c) selecting a comb line (having the index m) from the frequency comb ( 10 ) having a frequency (ν m ), (d) generating a frequency shift (Δν) of the frequency comb ( 10 ) and/or the working frequency (ν SL ) by means of time-dependent phase settings (φ S (t)) modulo a multiple of 2π, in particular of 2π, and (e) phase-coupling the possibly frequency-shifted fields of the working light (ν SL ) and the one possibly frequency-shifted frequency comb line (ν m ), so that the frequencies thereof are rigidly phase-coupled via the frequency shift (Δν), and working light having the desired frequency (ν Soll ) is obtained.