Title

Dual-frequency addressed variable optical attenuator with submillisecond response time

Authors

Authors

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

Comments

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Abbreviated Journal Title

Jpn. J. Appl. Phys. Part 1 - Regul. Pap. Brief Commun. Rev. Pap.

Keywords

variable optical attenuator; liquid crystal devices; fast response time; dual-frequency addressing; overdrive and undershoot voltages; NEMATIC LIQUID-CRYSTAL; CELLS; Physics, Applied

Abstract

We demonstrated a submillisecond response time and low-voltage variable optical attenuator (VOA) using a dual-frequency liquid crystal. The dynamic range of the VOA reaches 43 dB at a 1.55 mu m wavelength. A normally on VOA with a flat wavelength response is obtained using a phase compensation cell. Fast rise and decay times are achieved using low-frequency overdrive and high-frequency undershoot voltages. Other approaches to further improve the VOA's performances are discussed.

Journal Title

Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers

Volume

44

Issue/Number

3

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

1292

Last Page

1295

WOS Identifier

WOS:000228307400029

ISSN

0021-4922

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