可见光磁光隔离器的磁路设计与模拟  

Magnetic Circuit Design and Simulation for Visible Light Magnetooptical Isolator

作　　者：黄平[1] 韩满贵[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,四川成都610054

出　　处：《磁性材料及器件》2010年第2期42-45,共4页Journal of Magnetic Materials and Devices

基　　金：国家自然科学基金资助项目(60701016);电子科技大学青年基金资助项目(1081030103JX05017)

摘　　要：设计了几种用于可见光磁光隔离器的永磁磁路。将隔离器磁体截面设计为不同磁化方向磁体的组合。由于截面各部分磁体磁化方向的不同,分别构成直线型、π型和T型磁路。用Ansys有限元软件对这些磁路进行了磁场模拟,基于磁场分布模拟,可以选择可见光磁光隔离器所需的最佳磁路。并且得到了磁场分布的详细数值结果,为磁光隔离器的设计与制作提供了理论依据。Several magnets have been designed for visible light magnetooptical isolator. The isolator＇s hollow cylinder magnets in which the polarizers and magneto-optical crystal are put have been designed to have different cross-sections. Because the magnetization direction is different for different part of magnet in the cross-sections, straight line-type, n-type, and T-type magnetic circuits are constructed respectively. Ansys finite elements software has been used for the magnetic field simulation of these magnetic circuits. From the result of simulation, we can get the optimum permanent magnet for visible light magnetooptical isolator. The numerical results of magnetic field distribution can provide theorical basis for magneto-optical isolator design and manufacture.

关 键 词：磁光隔离器 磁路 磁场模拟 

分 类 号：TM153.1[电气工程—电工理论与新技术] TM144