Pulsed fiber lsers and amplifiers have industrally matured to deliver tens of kilowatts of peak power in a diffraction limited beam. In addition, the architecture of the fiber laser also enables a high flexibility of pulse para meter at constant beam quality due to the confinement of the laser mode by the index profile of the fiber. the laser mode of all other solid state lasers depends also on the overlap of pumped volume and laser mode volume.