Development Of Solid Laser To Suitable For Laser Cosmetic

In this paper, we studied on and make the laser treatment instrument for getting rid of body pigmented lesions, tattoos, etc. First, theoretical analysis the principle of solid-state lasers and researched the devices commonly used in laser with transfer matrix, and getting the resonator stability conditions, to determine the stability of the cavity mirrors concave curvature principle of selecting and optimizing the output mirror transmittance values.Experimental study on solid-state lasers with specific indicators using Nd:YAG/KD*P crystals, the laser threshold to be400V, static output conversion efficiency0.857%, the movement-static rate to be more than80%. Drawed the efficiency curve by installed frequency doubling crystal. The developed cosmetic laser for skin pigment applied to clinical trials, compared to the ruby laser and the alexandrite laser treatments to better treatment of skin pigment changes.