Submicrosecond speed variable optical attenuator using acoustooptics

    Authors

    N. A. Riza;Z. Yaqoob

    Abbreviated Journal Title

    IEEE Photonics Technol. Lett.

    Keywords

    acoustooptics; attenuator; Bragg cell; Engineering, Electrical & Electronic; Optics; Physics, Applied

    Abstract

    A novel variable optical attenuator (VOA) is introduced that can provide high dynamic range and high-resolution all at fast submicrosecond speeds. The VOA design exploits an in-line one-to-one imaging optical architecture operating with Bragg-mode acoustooptic Bragg cells, Optical attenuation is achieved via frequency and drive voltage control of the Bragg cells, leading to flexible and precise attenuation-level settings. VOA demonstrated a 45-dB dynamic range with a 175-ns switching time. Other measured parameters include 1.14-dB/MHz resolution, 1.56-dB polarization dependent loss, and an excess loss of 3.55 dB.

    Journal Title

    Ieee Photonics Technology Letters

    Volume

    13

    Issue/Number

    7

    Publication Date

    1-1-2001

    Document Type

    Article

    Language

    English

    First Page

    693

    Last Page

    695

    WOS Identifier

    WOS:000169452000017

    ISSN

    1041-1135

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