Anomalous Dispersion Phase-matched Second Harmonic Generation in Polymer Waveguides: Chromophores for Increased Efficiency and Uv Stability
نویسنده
چکیده
We report here 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%/Wcm over a propagation length of about 35 μm. The waveguide coupling technique limited the interaction length. The photostability of the chromophores was measured directly and found to qualitatively agree with photodegradation observed during 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 Cerenkov phase matching are discussed.
منابع مشابه
Second harmonic generation in AlGaAs photonic wires using low power continuous wave light.
We report modal phase matched (MPM) second harmonic generation (SHG) in high-index contrast AlGaAs sub-micron ridge waveguides, by way of sub-mW continuous wave powers at telecommunication wavelengths. We achieve an experimental normalized conversion efficiency of ~14%/W/cm2, obtained through a careful sub-wavelength design supporting both the phase matching requirement and a significant overla...
متن کاملSecond harmonic generation in nano-structured thin-film lithium niobate waveguides.
Integrated thin-film lithium niobate platform has recently emerged as a promising candidate for next-generation, high-efficiency wavelength conversion systems that allow dense packaging and mass-production. Here we demonstrate efficient, phase-matched second harmonic generation in lithographically-defined thin-film lithium niobate waveguides with sub-micron dimensions. Both modal phase matching...
متن کاملEfficient continuous wave second harmonic generation pumped at 1.55 microm in quasi-phase-matched AlGaAs waveguides.
We have fabricated quasi-phase-matched AlGaAs waveguides for continuous-wave second-harmonic generation (SHG) pumped around 1.55 microm. We find that the losses, which limit the conversion efficiency of this type of waveguide, are resulted from two corrugations--the initial template corrugation and the regrowth-induced domain-boundary corrugations. We are able to reduce the waveguide loss by im...
متن کاملTheoretical analysis of phase-matched second-harmonic generation and optical parametric oscillation in birefringent semiconductor waveguides.
We analyze the phase-matching conditions for second-harmonic generation (SHG) and optical parametric oscillation (OPO) in birefringent nonlinear semiconductor waveguides and apply these results to the model system of ZnGeP2 on a GaP substrate. The analyses and numerical results show that phase matching can be achieved for OPO and SHG for reasonable guide thicknesses throughout much of the infra...
متن کاملHighly efficient phase-matched second harmonic generation using an asymmetric plasmonic slot waveguide configuration in hybrid polymer-silicon photonics.
We theoretically investigate the possible increase of the second harmonic generation (SHG) efficiency in silicon compatible waveguides by considering an asymmetrical plasmonic slot waveguide geometry and a χ((2)) nonlinear polymer infiltrating the slot. The needed phase matching condition is satisfied between the fundamental waveguide mode at the fundamental frequency (FF) and second-order wave...
متن کامل