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Generation of dual-wavelength pulses by frequency doubling with quasi-phase-matching gratings

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Abstract

We demonstrate generation of two synchronized picosecond pulses at different wavelengths near 778 nm by frequency doubling of a femtosecond pulse. We use nonlinear frequency filtering with quasi-phase-matching gratings, which allow us to obtain second-harmonic spectral intensities that are higher than the spectral intensities of the pump.

© 2001 Optical Society of America

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