摘要
In this paper, we present a diode-pump continuous wave laser amplifier chain where master the oscillator power amplifier(MOPA) architecture is used. The laser amplifier chain consists of two Yb:YAG surface-doped slab laser modules and the 1030 nm fiber laser is used as seed. We theoretically calculate the conditions for obtaining high output l aser power and systematically analyze the advantages of surface-doped slab. The maximum output power is 6.1 kW and the optical to optical conversion efficiency is 27% when the pump power is 22 kW at room temperature. The beam quality(β) is 2.8 times diffraction limit. These results demonstrate that the surface-doped slab structure has the potential to obtain high output laser power.
基金
supported by the Key Laboratory of Science and Technology for National Defence on Solid-state Laser(No.614240401010117)。
