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A kind of flexible cantilever beam electromagnetic optical switch which is used in the wave length channel selection system was designed and fabricated. It was manufactured by micro-opto-electromechanical system technology and composed of a plane circular coil in flexible polyimide cantilever beam, a cylindrical permanent magnet,the substrate and a reflector prism with two reflecting surfaces. The switch′s motion depends on the current direction in the coils. The simulation of force between the coils and the permanent magnet was proceeded by finite element method. In the same way, the relationship between cantilever’s deflection and restoring force, and electromagnetic force were obtained. The switch′s actuation performance was tested and the results indicate that deflection of the cantilever is 0925 mm with 015 A current input,which satisfies the need of the wave length channel selection system of changing the propagation direction of the optical beam.
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Keywords:
- micro-opto-electromechanical system /
- optical switch /
- flexible cantilever beam /
- electromagnetic actuation
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[1] [1]Shi W, Jia W L, Ji W L, Liu K 2007 Acta Phys. Sin. 56 6334(in Chinese)[施卫、 贾婉丽、 纪卫莉、 刘锴 2007 56 6334]
[2] [2]Lao Y F, Cao C F, Wu H Z, Cao M, Gong Q 2009 Acta Phys. Sin. 58 1954(in Chinese)[劳燕锋、 曹春芳、 吴惠桢、 曹萌、 龚谦 2009 58 1954]
[3] [3]Chen D P, Cheng T, Gao J, Shi H T, Wu X P, Zhang Q C 2009 Acta Phys. Sin. 58 852(in Chinese)[陈大鹏、 程腾、 高杰、 史海涛、 伍小平、 张青川 2009 58 852]
[4] [4]Chen D P, Dong F L, Guo Z Y, Li C B, Miao Z Y, Wu X P, Xiong Z M, Zhang Q C 2007 Acta Phys. Sin. 56 2529(in Chinese)[陈大鹏、 董凤良、 郭哲颖、 李超波、 缪正宇、 伍小平、 熊志铭、 张青川 2007 56 2529]
[5] [5]Wang A B, Wang Y C, Zhang J Z 2009 Acta Phys. Sin. 58 3793(in Chinese)[王安帮、 王云才、 张建忠 2009 58 3793]
[6] [6]Fang Y M, Huang Q A, Li W H 2008 Chin. Phys B 17 1709
[7] [7]Zhang T, Wu Y H, Li H W, Liu B, Zhang P, Wang S R 2007 Opt. Prec. Engn. 15 866 (in Chinese) [张涛、 吴一辉、 黎海文、 刘波、 张平、 王淑荣 2007 光学精密工程 15 866]
[8] [8]Sun B Y, Yao H F,Wang J,Meng X L, Yu X L, Xu X R 2007 Magnet. Mater. Compon. 38 51 (in Chinese)[ 孙宝玉、 姚洪福、 王健、 孟祥龙、 于祥利、 徐孝荣 2007 磁性材料及器件 38 51]
[9] [9]Guan B L, Guo X, Yang H, Liang T, Gu X L, Guo J, Deng J, Gao G, Shen G D 2007 Acta Phys. Sin.56 4585 (in Chinese) [关宝璐、 郭霞、 杨浩、 梁庭、 顾晓玲、 郭晶、 邓军、 高国、 沈光地 2007 56 4585]
[10] ]Khoo M, Chang L 2000 Proceeding of the 22nd Annual EMBS International Conference,ChicagoIL, November 9—10 p 2394
[11] ]Cui Y L, Zhang Z H, Jiang L 2005 Plast. Sci. Technol. 3 50 (in Chinese) [崔永丽、 张仲华、 江利 2005 塑料科技 3 50]
[12] ]Yang J W, Wu Y H, Jia H G, Zhang P, Wang S R 2006 Opt. Prec. Engng. 14 83 (in Chinese)[杨杰伟、 吴一辉、 贾宏光、 张平、 王淑荣 2006 光学精密工程 14 83]
[13] ]Liu B D, Li D S, Yang X B 2007 Opt. Prec. Engng. 15 544 (in Chinese)[刘本东、 李德胜、 杨晓波2007光学精密工程 15 544]
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