The Kerr nonlinearity of the beta-barium borate crystal

Morten Bache, Hairun Guo, Binbin Zhou, Xianglong Zeng

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    Abstract

    A popular crystal for ultrafast cascading experiments is beta-barium-borate (β-BaB2O4, BBO). It has a decent quadratic nonlinear coefficient, and because the crystal is anisotropie it can be birefringence phase-matched for type I (oo → e) second-harmonic generation (SHG). For femtosecond experiments BBO is popular because of low dispersion and a high damage threshold. The main attractive property of ultrafast cascading is that the induced cascading nonlinearity nI 2, casc can be negative, i.e. generate a self-defocusing Kerr-like nonlinearity. However, the material Kerr nonlinearity nI 2, Kerr is self-focusing and competes with the cascading nonlinearity. Therefore, precise knowledge of its strength is crucial. We perform an experiment measuring the main c ü tensor component, and together with literature experimental data [1], we propose a cu value composed of 14 different data points
    Original languageEnglish
    Title of host publicationCLEO/Europe 2013 - European Conference on Lasers and Electro-Optics
    Number of pages1
    PublisherIEEE
    Publication date2013
    ISBN (Print)978-1-4799-0594-2
    DOIs
    Publication statusPublished - 2013
    Event2013 Conference on Lasers & Electro-Optics Europe & the International Quantum Electronics Conference (CLEO/Europe-IQEC) - Munich, Germany
    Duration: 12 May 201316 May 2013
    http://www.cleoeurope.org/

    Conference

    Conference2013 Conference on Lasers & Electro-Optics Europe & the International Quantum Electronics Conference (CLEO/Europe-IQEC)
    Country/TerritoryGermany
    CityMunich
    Period12/05/201316/05/2013
    Internet address

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