First-order quasi-phase-matched blue light generation in surface-poled Ti-indiffused lithium niobate waveguides

摘要

We demonstrate efficient first-order quasi-phase-matched second-harmonic generation in a surface periodically poled Ti:indiffused lithium niobate waveguide; 6 mW of continuous-wave blue radiation (=412.6 nm) was produced showing the potential of surface domain inversion for efficient nonlinear waveguide interactions.