Loading [a11y]/accessibility-menu.js
Electrostatic torsional micromirror: Its active control and applications in optical network | IEEE Conference Publication | IEEE Xplore

Electrostatic torsional micromirror: Its active control and applications in optical network


Abstract:

Electrostatically actuated torsional micromirror fabricated using microelectromechanical systems (MEMS) technology is a fundamental building block for many optical networ...Show More

Abstract:

Electrostatically actuated torsional micromirror fabricated using microelectromechanical systems (MEMS) technology is a fundamental building block for many optical network applications, such as optical wavelength-selective switch, configurable optical add-drop multiplexers and optical cross-connects. The major technical obstacle to achieve its full potentials in both functionalities and performance is the controllability and stability of its tilting angle. This paper presents the model for a micromirror fabricated using micragem silicon-on-insulator process. Closed-loop control approaches are proposed for the 1-degree of freedom (DOF) MEMS device assuming that the angle position can be measured. Compared with traditional open loop control approaches, the nonlinear proportional and derivative (PD) control and the gain scheduling approach improve the performance of the mirror switching, and enhance the robustness of the structures to any stochastic perturbations. Furthermore, the nonlinear PD control can achieve a larger controllable tilting angle than the pull-in angle resulting in significantly enhanced device performance and functionality. Applications of the electrostatic torsional micromirror to optical network are further discussed to underscore the significance and necessities of such methods.
Date of Conference: 23-26 August 2008
Date Added to IEEE Xplore: 19 September 2008
ISBN Information:

ISSN Information:

Conference Location: Arlington, VA

References

References is not available for this document.