Electromagnetically actuated mirror arrays for use in 3-D optical switching applications

被引:67
作者
Bernstein, JJ [1 ]
Taylor, WP
Brazzle, JD
Corcoran, CJ
Kirkos, G
Odhner, JE
Pareek, A
Waelti, M
Zai, M
机构
[1] Charles Stark Draper Lab Inc, Cambridge, MA 02139 USA
[2] Allegro Microsyst, Manchester, NH 03110 USA
[3] Sandia Natl Labs, Livermore, CA 94551 USA
[4] Corcoran Engn, Woods Hole, MA 02543 USA
[5] BAE Syst, Merrimack, NH USA
[6] Corning IntelliSense, Wilmington, MA 01887 USA
[7] Phonak AG, Staefa, Switzerland
关键词
actuators; electromagnetic actuation; magnetic transducers; micromachining; mirror array; optical switching; quadrupole;
D O I
10.1109/JMEMS.2004.828705
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents an electromagnetic MEMS mirror technology for use in 3-D optical switching applications. These mirrors may be actuated through large angles at low voltage and low current. Multiple coils on the backs of the mirrors interact with permanent magnetic fields to provide two-axis orthogonal actuation. A custom package brings the MEMS mirror array and magnets into close proximity. Actuation is linear versus drive current on both axes, and displays negligible charging and drift. These mirrors have achieved greater than 10degrees mechanical rotation per mA in each axis. The mirror rotation angle is hysteresis free to less than the 0.01degrees measurement accuracy.
引用
收藏
页码:526 / 535
页数:10
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