Method and device for producing stabilized ultra short laser light pulses

For operating a pulse laser (10) for generating laser pulses with a repetition frequency (f¶R¶) is established, the f¶n¶ a spectrum of N frequency components with f¶n¶ = n + E f¶R¶ f¶ 0¶ (n = 1 - N) contain (f¶0¶: offset frequency), in which a repetition frequency control circuit, a first control signal for repetition setting and with an offset frequency control circuit a second control signal is generated for the offset frequency adjustment, the laser pulses to a reference cell (33) directed in the stimulated an atomic transition at a predetermined repetition frequency and a predetermined offset frequency, and a spectroscopic signal can be induced, which can be detected with a detector device (31), with which a characteristic of the presence or absence of the spectroscopic signal generating the output signal, the output signal of the detector means (31) for generating either the first or the second control signal used t and the repetition frequency or the offset frequency of the pulse laser (10) is adjusted so that the output signal of the detector device (31) indicating the occurrence of the spectroscopic signal.