Efficient type II second harmonic generation in an indium gallium phosphide on insulator wire waveguide aligned with a crystallographic axis
Nicolas Poulvellarie, Carlos Mas Arabi, Charles Ciret, Sylvain Combrié, Alfredo De Rossi, Marc Haelterman, Fabrice Raineri, Bart Kuyken, Simon-Pierre Gorza, François Leo
Abstract
We theoretically and experimentally investigate type II second harmonic generation in III-V-on-insulator wire waveguides. We show that the propagation direction plays a crucial role and that longitudinal field components can be leveraged for robust and efficient conversion. We predict that the maximum theoretical conversion is larger than that of type I second harmonic generation for similar waveguide dimensions and reach an experimental conversion efficiency of 12%/W, limited by the propagation loss.
Topics & Concepts
Second-harmonic generationMaterials scienceIndium phosphideOpticsWaveguideEnergy conversion efficiencyOptoelectronicsIndiumGallium phosphideRefractive indexNonlinear opticsHigh harmonic generationHarmonicPhase matchingElectric fieldGalliumSurface second harmonic generationPhotonic crystalInsulator (electricity)Field (mathematics)Nonlinear systemElectron-beam lithographyFrequency conversionHarmonic analysisGallium arsenideWave propagationPhotorefractive and Nonlinear OpticsAdvanced Fiber Laser TechnologiesPhotonic and Optical Devices