A laser apparatus includes a modelocked laser system with a high reflector
and an output coupler that define an oscillator cavity. An output beam is
produced from the oscillator cavity. A gain medium and a modelocking
device are positioned in the oscillator cavity. A diode pump source
produces a pump beam that is incident on the gain medium. A second
harmonic generator is coupled to the oscillator cavity. A third harmonic
generator that produces a UV output beam, is coupled to the second
harmonic generator. A photonic crystal fiber is provided with a proximal
end coupled to the laser system. A delivery device is coupled to a distal
portion of the photonic crystal fiber.
