布里渊散射
光子晶体光纤
谱线
材料科学
纤维
光学
光纤
散射
光子学
有限元法
单模光纤
物理
光电子学
复合材料
热力学
天文
作者
Xiaolong Qian,Bo Han,Qi Wang
标识
DOI:10.1080/10739149.2012.702289
摘要
In this article, research is carried out on the characteristics of gain spectra of stimulated Brillouin scattering (SBS). Based on results reported previously, a more accurate and visualized acoustic wave equation in fiber is proposed. A mathematic model of SBS gain spectra is built using the finite element method (FEM) based on the acoustic wave equation. To prove the accuracy of the model, the numerical results of SBS gain spectra in single-mode fiber are compared with experimental results, and the maximum relative error is less than 0.13%. The gain spectra of SBS in photonics crystal fibers are also obtained with the help of the mathematic model. The influences of the size of radiuses and pitches of photonics crystal fiber, and the concentration of medium in photonics crystal fiber air-hole on the gain spectra of SBS are found. Based on the relationship between the concentration of medium in air-hole and gain spectra, a new method for optical detection of NaCl is proposed.
科研通智能强力驱动
Strongly Powered by AbleSci AI