Anomalous-dispersion phase-matched second-harmonic generation in a polymer waveguide

We demonstrate phase-matched second-harmonic generation in a poled polymer waveguide, using anomalous-dispersion phase matching. Phase matching was achieved between lowest-order fundamental and harmonic modes, TM0ω to TM02ω, at a fundamental wavelength of 815 nm over a propagation length of 32 μm. The maximum conversion efficiency was ηexp = 39%/W cm2, in good agreement with theory.