摘要
从麦克斯韦方程和材料密度方程出发,详细推导了受激布里渊增益和损耗同时存在时的矢量模型。推导过程中,从数学表达式上阐述了电致伸缩效应对受激布里渊散射的作用。理论分析发现布里渊增益谱和损耗谱参数(谱宽和频移)并不完全一致。推导出了琼斯空间和斯托克斯空间中的矢量模型,建立了一个较完整的关于受激布里渊散射的基础理论模型,可以为研究基于布里渊散射的偏振效应、偏振牵引和双折射测量提供支持。最后,基于此矢量模型进行仿真分析,得到了平均布里渊增益和双折射大小以及偏振态的关系。
Starting from the Maxwell equation and material density equation, the vector theory of simultaneous gain and loss stimulated Brillouin scattering（SBS） is developed for the first time. During the derivation, the effect of electrostriction on SBS is described through mathematical express. At the same time, it is found that the parameters（linewidth and Brillouin frequency） differ from each other in gain and loss spectrum theoretically.Moreover, the vector models in Jones space and Stokes space are concluded. It′s the most comprehensive vector theory of SBS as far as concerned. The theory complete the system of SBS, and will make numerous differences in the fields of SBS-based polarization effects, polarization pulling and birefringence measurement. Based on the vector theory, the effects of birefringence and polarization on average SBS gain are simulated and analyzed.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2015年第8期246-252,共7页
Chinese Journal of Lasers
基金
国家自然科学基金(61275089)
关键词
非线性光学
受激布里渊散射
矢量模型
双折射
偏振效应
nonlinear optics
stimulated Brillouin scattering
vector theory
birefringence
polarization effects
