Title

Variable optical attenuator with a polymer-stabilized dual-frequency liquid crystal

Authors

Authors

Y. H. Wu; X. Liang; Y. Q. Lu; F. Du; Y. H. Lin;S. T. Wu

Comments

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Abbreviated Journal Title

Appl. Optics

Keywords

CURING TEMPERATURE; ANISOTROPIC GELS; LIGHT; Optics

Abstract

A transmission-type variable optical attenuator WOA) based on a polymer-stabilized dual-frequency liquid crystal (PSDFLC) is demonstrated at gimel = 1.55 mu m. The VOA is highly transparent in the voltage-off state but scatters light in the voltage-on state. By using a birefringent beam displacer incorporated with half-wave plates, we can obtain a VOA that is polarization independent and that exhibits a 31 dB dynamic range. The polymer networks and dual-frequency effect together reduce the response time (rise + decay) of a 16 mu m PSDFLC cell to 30(ms) at room temperature and at a voltage of 24 V. (c) 2005 Optical Society of America

Journal Title

Applied Optics

Volume

44

Issue/Number

20

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

4394

Last Page

4397

WOS Identifier

WOS:000230366700026

ISSN

1559-128X

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