Simultaneous red, green and blue laser operations in a Pr3+:LiYF4 crystal

We report on the first, to the best of our knowledge, simultaneous continuous-wave red, green and blue laser operations in praseodymium-doped crystalline materials. At an absorbed pump power of 4.7 W (or 10 W of incident pump power), the maximum output power was 665 mW, which included 607 nm (red), 523 nm (green) and 479 nm (blue) three wavelengths, and the optical conversion efficiency with respect to the absorbed pump power was 14.1%.

Automated summary

We report the simultaneous continuous-wave red, green, and blue laser operations in praseodymium-doped crystalline materials for the first time. The maximum output power, including three wavelengths (red: 607 nm, green: 523 nm, blue: 479 nm), was 665 mW at an absorbed pump power of 4.7 W (or 10 W of incident pump power), with an optical conversion efficiency of 14.1%.