公开(公告)号：US20050117218A1

公开(公告)日：2005-06-02

申请号：US10724661

申请日：2003-12-01

申请人： Qiangsheng Xiang ,  Gang Huang ,  Xiangzhi Lin

发明人： Qiangsheng Xiang ,  Gang Huang ,  Xiangzhi Lin

IPC分类号： G02F1/09 ,  H01F7/20 ,  H01F1/00

CPC分类号： G02F1/09 ,  H01F7/20

摘要： The present invention relates to the. use of optimized magnet design, magnetic circuit design and wire coil design to improve latching reliability and reduce driving current for the switchable Faraday rotator devices. The geometrical parameters of semi-hard magnet are optimized to produce maximal magnetic field at the location of magneto-optic crystal and hence improve latching reliability and reduce driving current. The wire coil is optimized in coil length, wire gauge, and number of turns to produce most efficient energy transfer and hence reduce driving current and driving voltage. To reduce magnetic energy loss, soft magnetic material is included to form a magnetic conductive close loop and further reduces driving current requirements.

摘要翻译： 本发明涉及。 使用优化的磁铁设计，磁路设计和线圈设计，以提高可切换法拉第旋转器件的锁定可靠性和降低驱动电流。 优化了半硬磁体的几何参数，以在磁光晶体的位置产生最大磁场，从而提高锁存可靠性并降低驱动电流。 线圈在线圈长度，线规和匝数方面进行了优化，以产生最有效的能量传递，从而降低驱动电流和驱动电压。 为了减少磁能损耗，包括软磁性材料以形成导磁闭环，并进一步降低驱动电流要求。