Patent ID: 8494015

Claim:
A method for using a laser device suitable for emitting variable-period pulses, comprising: providing a resonant cavity including an amplifying medium presenting a stabilized gain G and suitable for emitting laser pulses at a wavelength λ, and a Q-switch; pumping the amplifying medium using a source of continuous pumping; positioning an injector positioned outside the resonant cavity, the injector suitable for emitting a beam of wavelength λ into the amplifying medium; providing a means for adjusting the power of the injected beam by a step of emission by the injector of a beam for the duration of the pumping when the Q-switch is in a closed position, and in that the power of the injected beam is adjusted to reduce the gain G of the amplifying medium to G/k, where k is a real number greater than 1.7; and emitting the variable period pulses from the laser device.