High-peak-power,single-mode,nanosecond pulsed,all-fiber laser for high resolution 3D imaging LIDAR system

This study presents an eye-safe, single-mode, nanosecond-pulsed, and all-fiber laser source with master- oscillator-power-amplifier configuration at 1 550 nm that is suitable for high-resolution three-dimensional (3D) imaging light detection and ranging (LIDAR) system. The output peak power of 7.6 kW is obtained at the 1.2-ns pulse width and 50-kHz repetition rate. The single-mode pulse laser output ensures the range precision and imaging results of the LIDAR system. The laser is used as a transmitter for the 3D imaging LIDAR system. The detailed characteristics of the LIDAR system and the results of the 3D imaging are presented.     

Low-repetition rate,nanosecond,high-power pulse amplifier system based on Yb-doped rod-type fiber

We report a nanosecond-pulse amplification system based on an Yb-doped,100-μm core,rod-type photonic crystal fiber.Up to 10 W of average power with pulse energy of 1 mJ and peak power of 450 kW is obtained at the repetition rate of 10 kHz.The high-power nanosecond pulse has a good pulse shape and spectral characteristics.The usage of rod-type fibers provides a novel structure for nanosecond pulse amplification.