TREATMENT OF SKIN BY A SOLID-STATE LASER

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Described are laser systems for treating skin. The system includes a first solid-state laser (210) for producing a first output beam (215) of laser radiation, a second solid state laser (220) for producing a second output beam, the second solid-state laser (220) adapted to absorb a first part of the first output beam (215) for generating excitation in a rare-earth doped gain medium to produce the second output beam, an optical fiber (201) adapted to receive laser radiation from the first solid-state laser (210) for directing the first part of the first output beam (215) to the second solid-state laser (220), and a delivery device comprising a handpiece (200) for directing the second output beam to a target region of skin. The handpiece (200) includes a frequency doubling crystal (224) configured to absorb the second output beam to generate a third output beam (225) for treating the skin. The second solid state laser (220) is housed in the handpiece (200).