Abstract
This paper describes a novel micromechanical optical switch that has
simple and easy-to-manufacture components comprising a few flat substrates,
including a flat electrode array and S-shaped deformable thin-film mirrors,
the number of which is determined by the number of incident light rays.
These components can be easily fabricated without using a deep reactive
ion-etching process. In the proposed switch, a light ray reflected by the
thin-film mirror between the substrates passes through one of the
substrates. Thus, the optical switch can be used not only for communication
networks but also for display systems and scanners. As a common core unit of
an optical switch for these applications, prototype core switches were
fabricated using the microelectromechanical system fabrication technique,
and their characteristics were evaluated. One of the prototype core switches
was driven at an applied voltage of 130 V. The switching time was shorter
than 2 ms.
© 2011 IEEE
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