The invention relates to a device for a laser blocked-mode, especially for a
pulsed laser, comprising a cavity resonator (20) which is defined by a first
mirror (1) and a second mirror (8), and fitted with an amplifying
active laser medium (5) for the amplification of a beam of laser radiation
of a fundamental frequency (1) and a solid, non-linear optic means (10)
comprising at least said second mirror (8) for reversible conversion of
the radiation of the fundamental frequency (1) into radiation of a harmonic
frequency (2) whereby said non-linear optic means (10) has a reflection
factor which increases with the intensity of the radiation of a fundamental frequency.
The invention is characterized in that said device also comprises a solid intensity
limiter (4) in the cavity resonator (20), whereby the transmission
factor of the laser radiation decreases with the intensity of said radiation. The
invention also relates to a method for a laser blocked-mode, especially for a pulsed
laser, using said device.