光学学报, 2016, 36 (9): 0914003, 网络出版: 2016-09-09   

基于受激布里渊散射的200 ps激光脉冲放大的理论研究

Theoretical Investigation on 200 ps Laser Pulses Amplification Based on Stimulated Brillouin Scattering
作者单位
1 哈尔滨工业大学可调谐激光技术国家重点实验室, 黑龙江 哈尔滨 150001
2 中国科学院光电研究院, 北京 100094
摘要
利用受激布里渊散射(SBS)能量转移的方案可以实现高效的百皮秒激光脉冲放大,这种放大方案可以用于冲击点火中冲击脉冲的获取。通过在液体介质中激发声波场,实现了能量从长脉冲向短脉冲转移的过程。利用一个瞬态条件下SBS耦合波方程来对200 ps脉冲的放大过程进行理论模拟。结果发现,利用SBS能量转移的方案可以将200 ps的激光脉冲放大到较高的功率密度,同时这个放大过程也伴随着一定程度的脉宽压缩。
Abstract
High efficient hundred-picosecond laser pulses amplification can be realized by scheme of stimulated Brillouin scattering (SBS) energy transfer. The amplification scheme can be used in the acquisition of shock pulse in shock-ignition. By exciting acoustic field in the liquid media, the process of energy transferring from long pulse to short pulse is realized. A SBS coupled wave equation under the transient condition is used to simulate the amplification process of 200 ps pulse in theory. The results show that SBS energy transfer scheme can amplify 200 ps laser pulse to a higher power density, and the amplification process accompanies with a certain pulse width compression.
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远航, 王雨雷, 吕志伟, 郑振兴, 白振旭, 哈斯乌力吉, 余锦. 基于受激布里渊散射的200 ps激光脉冲放大的理论研究[J]. 光学学报, 2016, 36(9): 0914003. Yuan Hang, Wang Yulei, Lü Zhiwei, Zheng Zhenxing, Bai Zhenxu, Hasi Wuliji, Yu Jin. Theoretical Investigation on 200 ps Laser Pulses Amplification Based on Stimulated Brillouin Scattering[J]. Acta Optica Sinica, 2016, 36(9): 0914003.

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