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Anomalous-dispersion phase-matched second-harmonic generation in polymer waveguides: chromophores for increased efficiency and ultraviolet stability

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Abstract

We report on a series of tricyanovinylaniline chromophores for use as dopants in poled poly(methyl methacrylate) waveguides for anomalous-dispersion phase-matched second-harmonic generation. Second-harmonic-generation measurements as a function of mode index confirmed anomalous-dispersion phase-matching efficiencies as large as 245%/W cm2 over a propagation length of ∼35 µm. The waveguide coupling technique limited the interaction length. The photostability of the chromophores was measured directly and found to agree qualitatively with second-harmonic measurements over time and was found to be improved over previously reported materials. Prospects for obtaining efficient conversion by combining anomalous dispersion with Čerenkov phase matching are discussed.

© 2000 Optical Society of America

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