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

TL;DR

This paper demonstrates efficient blue light generation via first-order quasi-phase-matched second-harmonic generation in surface-poled lithium niobate waveguides, highlighting the potential of surface domain inversion for nonlinear optical applications.

Contribution

It presents the first demonstration of first-order quasi-phase-matched SHG in surface-poled lithium niobate waveguides, achieving notable blue light output.

Findings

6 mW of continuous-wave blue light at 412.6 nm produced

Efficient second-harmonic generation achieved in surface-poled waveguides

Potential for advanced nonlinear optical devices

Abstract

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 (wavelength = 412.6 nm) was produced showing the potential of surface domain inversion for efficient nonlinear waveguide interactions.