All-solid-state high beam quality 1053nm nd: Glass amplifier at repetition frequency

A laser amplifier of LD pumping Nd: glass with a high beam quality and stability, which amplifies nanosecond laser pulse, has been developed in this paper. The device adopts the major technology of "LD pumping multi pass amplification together". Beam transmission is designed with the technology of "inhibition of diffraction effect, active control and spatial filtering".