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Proceedings Paper

Low power high extinction electrothermal MEMS iris VOA
Author(s): H. Veladi; R. R. A. Syms; H. Zou
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Paper Abstract

Electrothermal actuation provides the long displacement required by an increasing number ofMEMS applications. However, its high power consumption is a limiting factor, especially for applications in which multiple actuators are required. An iris type variable optical attenuator (VOA),5 which was recently introduced by our group, is an example of such an application. In this paper we introduce an improved single sided electrothermal design, which reduces the power consumption by a factor of 70%, while at the same time removing an undesired mechanical resonance. The optical performance is also improved by the introduction of a novel aperture shape which provides higher extinction, independent of the process technology.

Paper Details

Date Published: 21 April 2006
PDF: 12 pages
Proc. SPIE 6186, MEMS, MOEMS, and Micromachining II, 61860J (21 April 2006); doi: 10.1117/12.662093
Show Author Affiliations
H. Veladi, Imperial College London (United Kingdom)
R. R. A. Syms, Imperial College London (United Kingdom)
H. Zou, Imperial College London (United Kingdom)


Published in SPIE Proceedings Vol. 6186:
MEMS, MOEMS, and Micromachining II
Hakan Ürey; Ayman El-Fatatry, Editor(s)

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