Single-mode broadband red fiber laser

18 W of red laser radiation at 0.63 μ with 3 nm spectral bandwidth was achieved by sum frequency generation (SFG) of Er and Yb pulsed fiber lasers radiations at 1.55 μ and 1.06 μ wavelengths respectively. Noncritical phase matching in lithium triborate (LBO) crystal at 16°C of temperature was used.