Pulsed fiber laser with 30W output power at 532nm

We have developed innovative high power polarized 1064nm pulsed fiber laser for efficient nonlinear frequency conversion and by frequency doubling it's output generated 30W of average power with 68% conversion efficiency at 532nm. This new 1064nm pulsed fiber laser operates at l.8MHz repetition rate with 1.3ns pulse duration and close to bandwidth-limited spectral linewidth. The developed laser delivers 46W average power at 1064nm in the linearly polarized output beam with a polarization extinction ratio 20dB. This laser has a truly solid-state design required for deployment into the industrial environment and can be used for nonlinear frequency conversion to generate high power emission in the visible and UV parts of optical spectrum as well as for other applications. The overall 16% efficiency demonstrated in generating 532nm is believed to be the highest wall plug efficiency achieved by any solid-state or fiber lasers with visible output. We expect that over 20% total efficiency for the fiber laser with tens of watts output in the green spectral range will be available.