2 results about "Visible laser" patented technology

This invention discloses a laser irradiation therapy device based on metal film directional scattering beam expansion, comprising a chassis, a power supply module, an intelligent control module, a mid-infrared laser emission module, and a human-computer interaction component mounted on the chassis. It also includes a laser transmission module, a metal film directional scattering beam expansion and homogenization module, a visible laser emission module, a temperature detection module, and an adjustable support. During operation, the mid-infrared laser is transmitted to the beam-combining module via a light guide arm or flexible mid-infrared hollow fiber, while the visible laser is transmitted to the beam-combining lens via a visible light incident channel. The two lasers form a coaxial composite beam at the beam-combining lens, which together irradiates the metal film component. After directional scattering and beam expansion, the beam is output from the light outlet to the working area, forming an expanded and homogenized light spot. This therapy device, with the metal film component as the core optical shaping component, has advantages such as clear structure, adjustable light output direction, adjustable light spot area, visualized working area, and high safety.

The application discloses a praseodymium-doped visible light laser and a debugging method thereof. The laser comprises a double-end pumping module for generating pumping light; a praseodymium-doped gain medium module located on an optical path between the double-end pumping module and used for generating visible light laser under excitation of the pumping light; an auxiliary Kerr medium module comprising an undoped YAG crystal and located in a resonant cavity and used for enhancing Kerr lens effect of the visible light laser in the resonant cavity; and the resonant cavity comprising a plurality of end mirrors and an output coupling mirror and used for outputting the visible light laser from the output coupling mirror after oscillation in the end mirrors. By using the above system, the serious thermal effect generated by the tightly focused cavity of the mode-locked laser is effectively reduced, the nonlinear effect is enhanced to improve the mode-locked stability, the excellent combination of high-power output and ultrashort pulse characteristics is realized, and a reliable technical path is provided for practical application of the visible light ultrafast laser.