Compact efficient high-power triple-color Nd:YVO4 yellow-lime-green self-Raman lasers

A novel, to the best of our knowledge, approach is developed to realize a high-power compact efficient yellow-lime-green triple-color Nd V YVO4 self-Raman laser. The 588nmyellow laser, the 559 nm lime laser, and the 532 nm green laser are converted from the 1064 nm fundamental wave and the 1176 nm Stokes Raman field. The simultaneous three-color operation is accomplished with three stages to step-by-step generate the 588 nm, 559 nm, and 532 nm lasers by using three different lithium triborate (LBO) crystals. By tuning the temperature of each individualLBOcrystal, the 588 nm, 559 nm, and 532 nm output powers can be nearly the same and concurrently up to 2.4Wat the incident pump power of 30 W, corresponding to a conversion efficiency of 24% for the total output power.