摘要
在分析不同基质材料激光特性的基础上,结合钕玻璃放大系统的增益特性和△B分布特性,提出了在高功率激光装置的主放大级中,混合使用高增益激光玻璃和低非线性折射率玻璃的新思路,以期在降低非线性折射率的基础上提高激光装置在短脉冲的输出能力.用光传输程序模拟计算所得结果表明该方案能有效提高系统输出能力.在1 ns时,激光系统最大能量输出有30%～40%增长.
The optical and laser properties of several laser glasses have been discussed. According to the properties of the gain and the B integral in the high power laser amplifier chain, an optimal configuration is advanced that high gain glasses and low n2 glasses are used in the different amplifier stages simultaneously. In this way, the restriction of the B integral effect to the maximal output capability can be weaken and the output capability difference between short pulses and long pulses can be decreased. The simulated result shows that the optimal configuration can potentially provide a 30%-40% output energy improvement as compared with the present configuration at 1 ns.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2005年第4期518-522,共5页
High Power Laser and Particle Beams
基金
国家 863计划项目资助课题
关键词
高功率激光装置
能量增益
数值模拟
激光玻璃
非线性折射率
Amplifiers (electronic)
Computer simulation
Optimization
Refractive index
Ultrashort pulses
