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报道了一种在室温下运转的高功率Yb∶YAG表层掺杂板条激光放大器,该放大器基于主振荡功率放大结构(MOPA),以光纤激光器作为种子源,种子光经预放大器放大后,再进入表层掺杂板条中进行功率放大。建立了放大器增益模块的提取功率和提取效率的理论模型,并进行了实验研究。放大器在3.5 kW的1030 nm信号光注入和22.4 kW的940 nm激光二极管抽运条件下,输出激光功率10.6 kW,从单增益模块中提取功率7.1 kW,提取效率达到31.7%,实验结果和理论计算结果基本相符。同时对板条的透射波前进行了测量,PV=1.6μm。 相似文献
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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. 相似文献
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