The nonlinear optical properties of AlGaAs at the half band gap

    Authors

    J. S. Aitchison; D. C. Hutchings; J. U. Kang; G. I. Stegeman;A. Villeneuve

    Comments

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    Abbreviated Journal Title

    IEEE J. Quantum Electron.

    Keywords

    nonlinear optics; optical propagation in anisotropic media; optical; propagation in nonlinear media; 2-PHOTON ABSORPTION; ZINCBLENDE SEMICONDUCTORS; 3-PHOTON ABSORPTION; WAVE-GUIDES; REFRACTION; ANISOTROPY; DISPERSION; LIMITATION; Engineering, Electrical & Electronic; Optics; Physics, Applied

    Abstract

    We report experimental values for the nonlinear optical coefficients of AlGaAs, in the half-band-gap spectral region. The dispersion of the nonlinear refractive-index coefficient, nl, is measured for both TE- and TM-polarized light. We observe n(2)(TE) > n(2)(TM) and a ratio of cross-phase modulation to self-phase modulation (TE) of similar to 0.95, as predicted from bandstructure calculations. The spectral dependence of the two- and three-photon absorption coefficients are also measured, Finally, the implications for all-optical switching and spatial soliton propagation are discussed.

    Journal Title

    Ieee Journal of Quantum Electronics

    Volume

    33

    Issue/Number

    3

    Publication Date

    1-1-1997

    Document Type

    Article

    Language

    English

    First Page

    341

    Last Page

    348

    WOS Identifier

    WOS:A1997WW66200003

    ISSN

    0018-9197

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