Abstract: Disclosed is a pulsed laser system for dermatological treatment, including a light source suitable for emitting a light pulse beam and an optical amplifier system suitable for generating a laser pulse beam at a first repetition frequency. The duration of a laser pulse is between 100 femtoseconds and 100 picoseconds, the first repetition frequency is between 1 kHz and 10 GHz, each laser pulse having a quantity of energy less than or equal to 1 microjoule, and the pulsed laser system also includes a unit for temporally modulating the laser pulse beam and/or a unit for spatially modulating the laser pulse beam, the temporal and/or spatial modulation means being suitable for reducing the density of energy deposited on a surface to be treated and for generating a density of energy of between 0.0001 J/cm2 and 0.01 J/cm2.

Abstract: Disclosed is a system for generating short or ultra-short light pulses, including a light source configured to emit temporally continuous-wave light radiation, an electrical generator configured to operate at a tunable frequency in a passband included between 5 and 100 GHz and to emit an analogue modulating electrical signal including at least one electrical pulse of duration included between 10 ps and 100 ps, and an electro-optical modulator having electrodes and an electrical passband that are suitable for receiving the analog modulating electrical signal, the electro-optical modulator being configured to optically amplitude modulate the continuous-wave light radiation depending of the analog modulating electrical signal and to generate modulated light radiation including at least one light pulse of duration included between 10 ps and 100 ps.

Abstract: Disclosed is a dermatological diagnostic and treatment system including a light source device, a light flow collecting device, a spectroscopic measurement device, and a computer. The light source device includes a laser source tunable in wavelength inside the spectral range, the laser source being tunable in duration and/or rate and the laser source being adapted to generate a second treatment laser beam of high intensity at said first wavelength towards the epidermal surface. The dermatological diagnostic and treatment system further includes a temperature sensor and a feedback device, the temperature sensor being arranged to record a temperature measurement signal of the epidermal surface as a function of the application of the second laser beam. The feedback device is configured to modify the duration and/or rate of the laser pulses as a function of the temperature measurement signal.

Abstract: Disclosed is a system for generating short or ultra-short light pulses, including a light source configured to emit temporally continuous-wave light radiation, an electrical generator configured to operate at a tunable frequency in a passband included between 5 and 100 GHz and to emit an analogue modulating electrical signal including at least one electrical pulse of duration included between 10 ps and 100 ps, and an electro-optical modulator having electrodes and an electrical passband that are suitable for receiving the analog modulating electrical signal, the electro-optical modulator being configured to optically amplitude modulate the continuous-wave light radiation depending of the analog modulating electrical signal and to generate modulated light radiation including at least one light pulse of duration included between 10 ps and 100 ps.