Nonlinear contrawave mixing devices in poled-polymer waveguides

    Authors

    A. Otomo; G. I. Stegeman; M. C. Flipse; M. B. J. Diemeer; W. H. G. Horsthuis;G. R. Mohlmann

    Comments

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    Abbreviated Journal Title

    J. Opt. Soc. Am. B-Opt. Phys.

    Keywords

    LINEAR INTEGRATED-OPTICS; SUM-FREQUENCY GENERATION; MULTILAYER; WAVE-GUIDES; 2ND-HARMONIC GENERATION; BLUE; SYSTEMS; ABSORPTION; FILMS; Optics

    Abstract

    We investigated efficient surface-emitting second-harmonic-generation devices in poled polymers, using a 4-dimethylamino-4'-nitrostilbene side-chain polymer. The investigation included characterization of the linear and nonlinear optical properties of the polymer, design of efficient surface-emitting second-harmonic-generation devices based on poled polymers, development of an efficient in-plane poling technique, and demonstration of surface-emitting second-harmonic generation in poled polymers. As a result, strong field inplane parallel poling was successfully performed with poling fields over 300 V/mu m, which led to a large nonlinearity of 150 pm/V at 1064 nm (near resonance). A thick cover layer and a highly resistive substrate were found to be essential for efficient in-plane poling without breakdown at relatively small fields and significant charge injection. We achieved quasi-phase matching in the transverse direction by fabricating nonlinear-linear multilayer waveguides. Each layer had approximately a 150-nm thickness. The largest second-harmonic power conversion efficiency to date in the poled-polymer devices is 0.6%/W cm, which is comparable with those of semiconductor multilayer devices. (C) 1998 Optical Society of America.

    Journal Title

    Journal of the Optical Society of America B-Optical Physics

    Volume

    15

    Issue/Number

    2

    Publication Date

    1-1-1998

    Document Type

    Article

    Language

    English

    First Page

    759

    Last Page

    772

    WOS Identifier

    WOS:000072015600030

    ISSN

    0740-3224

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