Pulsed laser system for dermatological treatments

A pulsed laser system for dermatological treatment, the pulsed laser system comprising a light source suitable for emitting a light pulse laser and an optical amplifier system suitable for receiving the light pulse beam and generating a laser pulse beam at a first repetition frequency (F1), wherein:

• the duration (d) of a laser pulse is between 100 femtoseconds and 100 picoseconds, the first repetition frequency (F1) is between 1 kHz and 10 GHz, each laser pulse having a quantity of energy lower than or equal to 1 microjoule, and the pulsed laser system further includes means for temporally modulating the laser pulse beam and/or means for spatially modulating the laser pulse beam, these temporal and/or spatial modulation means being adapted to reduce the density of energy deposited on a surface area to be treated and to generate a density of energy between 0.0001 J/cm2 and 0.01 J/cm2.