50W single-mode linearly polarized high peak power pulsed fiber laser with tunable ns-μs pulse durations and kHz-MHz repetition rates

We report our recent progress in the design and fabrication of a completely monolithic linearly-polarized pulsed Yb-doped fiber laser, with >10kW peak power, tunable 2ns-0.2 mu s pulse duration, tunable 50kHz-50MHz repetition rate and 50W average power in a diffraction-limited, linearly polarized and stabilized 0.8nm line-width output beam operating at 1064nm. The innovative all-fiber design of the laser is desirable for deployment in industrial applications. A wide range of independently-tunable pulse durations and repetition rates make this laser capable to address a large variety of laser applications, including high-power nonlinear wavelength conversion processes, LIDAR, etc.