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Proceedings Paper

Operating principles of an electrothermal vibrometer for optical switching applications
Author(s): Min-fan Pai; Norman C. Tien
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Paper Abstract

A compact polysilicon surface-micromachined microactuator designed for optical switching applications is described. This actuator is fabricated using the foundry MUMPs process provided by Cronos Integrated Microsystems Inc. Actuated electrothermally, the microactuator allows fast switching speeds and can be operated with a low voltage square-wave signal. The design, operation mechanisms for this long-range and high frequency thermal actuation are described. A vertical micromirror integrated with this actuator can be operated with a 10.5 V, 20 kHz 15% duty-cycle pulse signal, achieving a lateral moving speed higher than 15.6 mm/sec. The optical switch has been operated to frequencies as high as 30 kHz.

Paper Details

Date Published: 2 September 1999
PDF: 7 pages
Proc. SPIE 3878, Miniaturized Systems with Micro-Optics and MEMS, (2 September 1999); doi: 10.1117/12.361253
Show Author Affiliations
Min-fan Pai, Cornell Univ. (United States)
Norman C. Tien, Cornell Univ. (United States)

Published in SPIE Proceedings Vol. 3878:
Miniaturized Systems with Micro-Optics and MEMS
M. Edward Motamedi; Rolf Goering, Editor(s)

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