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Amplification of hybrid-widen linewidth of broadband pulses in Nd:glass laser systems

Luo Bin Liu Lan-Qin Mo Lei Su Jing-Qin Wang Wen-Yi Wang Fang Jing Feng Wei Xiao-Feng

Amplification of hybrid-widen linewidth of broadband pulses in Nd:glass laser systems

Luo Bin, Liu Lan-Qin, Mo Lei, Su Jing-Qin, Wang Wen-Yi, Wang Fang, Jing Feng, Wei Xiao-Feng
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  • Received Date:  16 January 2008
  • Accepted Date:  17 September 2008
  • Published Online:  05 March 2009

Amplification of hybrid-widen linewidth of broadband pulses in Nd:glass laser systems

  • 1. (1)西南交通大学计算机与通信工程学院,成都 610031; (2)中国工程物理研究院激光聚变研究中心,绵阳 621900

Abstract: Base on physical amplification models established to describe the broadband laser pulse amplification processes, using numerical simulation methods, we analyse the amplification abilities of the Nd:glass laser system under different spectral linewidths. The results indicate that the output energies decrease with the increasing spectral linewidth. Compared with narrowband laser pulse of 3000 J/1ns, under the same conditions, the output energies of broadband laser pulse will reduce 2%, 11% and 27% for 2nm, 5nm and 10nm laser pulses,respectively. The influences of cross relaxation on the amplification processes are also studied. The output energies of completely nonhomogeneous broadening will reduce about 20% compared with that of completely homogeneous broadening. Then, the range of cross relaxation time is estimated to be 0—10 ns.

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