Broadband 2 x 2 free-space optical switch using electronically controlled liquid lenses

    Authors

    N. A. Riza;P. J. Marraccini

    Comments

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    Abbreviated Journal Title

    Opt. Commun.

    Keywords

    ATTENUATOR; Optics

    Abstract

    To the best of our knowledge, proposed is the first liquid lens technology-based 2 x 2 free-space optical switch using a pair of Electronically Controlled Variable Focus Lenses (ECVFLs). By independently controlling the focal lengths of two cascaded liquid ECVFLs, the two input optical beams are spatially adjusted to couple to their respective output beam ports. At 633-nm, the experimental switch demonstrates 26.3 dB crosstalk, 23.0 dB within-channel isolation, 1.1 dB optical loss, and 0.2 dB Polarization Dependent Loss (PDL). A 0.2 dB Wavelength Dependent Loss (WDL) is measured over 633-nm and 514-nm wavelengths. A 1 x 2 optical-fiber coupled switch version is also tested. The proposed switch can be useful in free-space laser systems as well as fiber-based modules. (C) 2010 Elsevier B.V. All rights reserved.

    Journal Title

    Optics Communications

    Volume

    283

    Issue/Number

    9

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    1711

    Last Page

    1714

    WOS Identifier

    WOS:000275917600010

    ISSN

    0030-4018

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