The invention relates to an ophthalmic laser treatment system comprising a first beam path (1) incorporating a laser module (4) and a beam attenuator means (5) an optical switching means (7) allowing alternatively directing the beam from the first beam path (1) into a second (2) or third beam path (3) said second beam path incorporating a beam expander said third beam path incorporating downstream of the optical switching means (7) a frequency doubling module (12) and means (20, 22, 23) for directing the beam of the second and third beam path into the eye (24) of a patient and is characterized in, that the optical switching means (7) is arranged downstream of said beam attenuator means (5), the third beam path comprises a beam shaping module (11) upstream of said frequency doubling module (12) any beam attenuation in the third beam path (3) is solely controllable by said beam attenuator means (5) in the first beam path (1) and the frequency doubling module (12) comprises a temperature stabilizing component (50) for stabilizing the temperature of a frequency doubling element (51) of the frequency doubling module (12).
