Device for analyzing a single pulse with variable step

A device for analyzing a single electrical pulse, which device comprises an electrical circuit made up of a propagation line, including, in uniformly distributed manner, optoelectronic switches constituted by photoconductor tabs disposed along the propagation line at pitch p, each of them being connected to a corresponding analysis line, characterised in that it comprises an optical device making it possible to light the switches with a laser beam or with portions of a laser beam, so that two adjacent photoconductor tabs are lit successively and not simultaneously, the duration Δt of the time interval between the lighting by the laser beam of two adjacent tabs being such that:

• Δ ⁢ ⁢ t ≠ p V c
• where Vc is the speed of the propagation of an electrical signal in the propagation line;
• and
• there being n photoconductor tabs disposed along the propagation line at a pitch p, a distance b separating the first tab of the line from the end of the line, the following relationship being satisfied for any tab N(2≦N≦n) and for any k, 1≦k≦N−1:
• 2b≠kΔtVc−p[k+2(n−N)]
• where Vc designates the speed of propagation of an electrical signal in a line and where Δt is the duration of the time interval between the lighting, by the laser beam, of two adjacent tabs.