受激布里渊散射光纤陀螺中受激布里渊散射效应的机理研究

Study on Mechanism of the Stimulated Brillouin Scattering for the Stimulated Brillouin Scattering Fiber Optic Gyros (SBS FOG)

本文从非线性的受激布里渊散射理论出发 ,研究了受激布里渊散射光纤陀螺 (SBS- FOG)中的受激布里渊散射效应产生机理 ,得出了阈值光功率与光纤敏感环各参数之间的函数关系 ,并用针对两种光纤纤芯折射率分布情况 ,对于所导出的上述函数关系进行了数值模拟和图形表示 ,从而为合理选取这种光纤陀螺的参数提供了理论依据。

WT5”BZ]:The mechanism of the stimulated Brillouin scattering was investigatged for the stimulated Brillouin scattering fiber optic gyros (SBS FOG) by using non linear theory,and the functional relation between threshold power of the fiber source and paramaters of the fiber sensing coil was educed.This relation was numerically simulated and graphically expressed for two type refractive index distribution,which provided theoretical basis for exactly choosing the parameters of the SBS FOG. [WT5”HZ]