报道了对几种掺杂ＳｉＯ２石英系单模光纤的背向受激布里渊散射（ＢＳＢＳ）谱的实验结果，结果表明其布里渊散射斯托克斯频移主要取决于纤芯的掺杂材料和浓度，进一步分析证明了光纤掺杂后将主要通过调制杨氏模量的变化，从而导致ＢＳＢＳ频移量减小 The experimental results of backscattered Brillouin scattering (BSBS) spectra of several doped SiO2 quartz single mode fibers are reported. The results show that the Stokes shift of Brillouin scattering mainly depends on the doping Miscellaneous materials and concentrations, further analysis proves that the optical fiber doping will mainly through the modulation of Young’s modulus changes, resulting in reduced frequency BSBS 