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  4. A Polyvinylidene fluoride (PVDF) based bimorph actuator for high speed laser beam manipulation
 
conference paper

A Polyvinylidene fluoride (PVDF) based bimorph actuator for high speed laser beam manipulation

Perez, R.  
•
Kral, M.
•
Bleuler, H.  
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2011
Smart Sensors, Actuators, And Mems V
Conference on Smart Sensors, Actuators, and MEMS V

High-speed laser manipulation is a key technology in applications such as fast optical switches for coupling light into optical fibres, 2D beam steering for optical scanners, laser printers or 2D sensors. A novel design of a Polyvinylidene Fluoride (PVDF) bimorph actuator is proposed in this work as high speed switching element in the kHz range. The actuator of several cm length and 200 microns thickness takes advantage of the structural and electromechanical capabilities of the PVDF. A 0.164 g compact mirror is placed at the tip of the PVDF bimorph actuator allowing scanning of the beam in two directions. Tests made by an autocollimator have been performed in order to characterize the precision, repeatability and also the long term stability at low frequencies. To complete this characterization, a photodiode was used to measure the response of the mirror at high frequencies up to 3 kHz. Results of the FE element confirm the trends observed in the experimental setup. Experimental results indicate that the PVDF actuator responds conveniently to manipulate the laser beam at kHz frequency. In addition, due to the intrinsic properties of the PVDF, the system is compact and light-weight. This is of advantage in several domains such as e. g. aerospace or micro-engineering.

  • Details
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Type
conference paper
DOI
10.1117/12.888983
Web of Science ID

WOS:000292764300025

Author(s)
Perez, R.  
Kral, M.
Bleuler, H.  
Clavel, R.  
Date Issued

2011

Publisher

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa

Published in
Smart Sensors, Actuators, And Mems V
ISBN of the book

978-0-81948-655-4

Series title/Series vol.

Proceedings of SPIE; 8066

Start page

80660R

Subjects

piezoelectric actuators

•

Pvdf

•

laser manipulation

•

bimorphs

•

Constituent Equations

Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
LSRO  
Event nameEvent placeEvent date
Conference on Smart Sensors, Actuators, and MEMS V

Prague, CZECH REPUBLIC

Apr 18-20, 2011

Available on Infoscience
December 16, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/73822
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