Dual-frequency addressed variable optical attenuator with submillisecond response time

    Authors

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

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    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

    Share

    COinS