Phase-insensitive all-optical transistors based on second-order nonlinearities

    Authors

    S. Kim; Z. Wang; D. J. Hagan; E. W. Van Stryland; A. Kobyakov; F. Lederer;G. Assanto

    Comments

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    Abbreviated Journal Title

    IEEE J. Quantum Electron.

    Keywords

    nonlinear optics; optical amplifiers; optical materials/devices; optical; parametric amplifiers; optical switches; II 2ND-HARMONIC GENERATION; 2ND-ORDER NONLINEARITIES; QUADRATIC; NONLINEARITIES; MODULATION; WAVELENGTH; SHIFTS; KTP; Engineering, Electrical & Electronic; Optics; Physics, Applied

    Abstract

    We demonstrate and compare two phase-insensitive all-optical transistors (AOT's) based on frequency-degenerate quadratic three-wave interactions, In particular, we demonstrate gain using KTP in a type LI geometry. Both AOT's exploit the phase insensitivity inherent to three-wave parametric processes when only two fields are input, providing amplification of a small signal at the operating frequency via the interaction with a second-harmonic wave, The first scheme is based on successive up-and down-conversion (i.e., cascading) while the second relies on parametric down-conversion. We obtain gains of 5 and 160 in the two configurations, respectively, with a significant background and output coherent to the pump in the first case, no background and coherence between output and signal in the second.

    Journal Title

    Ieee Journal of Quantum Electronics

    Volume

    34

    Issue/Number

    4

    Publication Date

    1-1-1998

    Document Type

    Article

    Language

    English

    First Page

    666

    Last Page

    672

    WOS Identifier

    WOS:000072704900009

    ISSN

    0018-9197

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