The invention relates to a method for measuring the delay between N pulses (1) of duration less than 100 picoseconds, which comprises the steps of: - collimated emission of pulses (1 k) of the same repetition frequency, - emission of a pulse of reference (2) of the same repetition frequency capable of producing interference fringes with each of the pulses, - for each of the pulses, detection by a detector (3) of the coherent sum of this pulse with the reference pulse, this sum producing said interference fringes, the fringes from each of the pulses being distinguishable from each other. The reference pulse is transmitted with an adjustable delay, and the method furthermore comprises: for each delay, simultaneous measurement for the N-contrast pulses of the interference fringes, for each of the pulses, a delay value between this pulse pulse and the reference pulse is determined by the delay corresponding to the maximum contrast.
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