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200ps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200ps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。
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.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2016年第9期213-217,共5页
Acta Optica Sinica
基金
国家自然科学基金(61378007
61378016
61138005)
关键词
激光器
受激布里渊散射
脉冲放大
瞬态理论
高功率
lasers
stimulated Brillouin scattering
pulse amplification
transient theory
high power
