Two-photon photovoltaic effect in gallium arsenide

    Authors

    J. C. Ma; J. Chiles; Y. D. Sharma; S. Krishna;S. Fathpour

    Comments

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    Abbreviated Journal Title

    Opt. Lett.

    Keywords

    NONLINEAR ABSORPTION; SILICON; GAAS; Optics

    Abstract

    The two-photon photovoltaic effect is demonstrated in gallium arsenide at 976 and 1550 nm wavelengths. A waveguide-photodiode biased in its fourth quadrant harvests electrical power from the optical energy lost to two-photon absorption. The experimental results are in good agreement with simulations based on nonlinear wave propagation in waveguides and the drift-diffusion model of carrier transport in semiconductors. Power efficiency of up to 8% is theoretically predicted in optimized devices. (C) 2014 Optical Society of America

    Journal Title

    Optics Letters

    Volume

    39

    Issue/Number

    18

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    5297

    Last Page

    5300

    WOS Identifier

    WOS:000341926500015

    ISSN

    0146-9592

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