Highly tunable large-core single-mode liquid-crystal photonic bandgap fiber

    Authors

    T. T. Alkeskjold; J. Laegsgaard; A. Bjarklev; D. S. Hermann; J. Broeng; J. Li; S. Gauza;S. T. Wu

    Comments

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    Abbreviated Journal Title

    Appl. Optics

    Keywords

    REFRACTIVE-INDEXES; OPTICAL-FIBER; DEVICES; EQUATIONS; GUIDANCE; Optics

    Abstract

    We demonstrate a highly tunable photonic bandgap fiber, which has a large-core diameter of 25 mu m and an effective mode area of 440 mu m(2). The tunability is achieved by infiltrating the air holes of a photonic crystal fiber with an optimized liquid-crystal mixture having a large temperature gradient of the refractive indices at room temperature. A bandgap tuning sensitivity of 27 nm/degrees C is achieved at room temperature. The insertion loss is estimated to be less than 0.5 dB and caused mainly by coupling loss between the index-guided mode and the bandgap-guided mode. (c) 2006 Optical Society of America.

    Journal Title

    Applied Optics

    Volume

    45

    Issue/Number

    10

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    2261

    Last Page

    2264

    WOS Identifier

    WOS:000236572000016

    ISSN

    1559-128X

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