Quasi-Phase Matched Optical Parametric Generation at 1.54 micrometers

Abstract : Efficient generation of 1.54 micrometers optical radiation can play a big role in eye safe detection and communication. Quasi-phase matching has the potential to provide efficient conversion to 1.54 micrometers. Our approach to develop a quasi-phase matched device at 1.54 micrometers is to use photorefractive self-induced waveguides along with alternating ferroelectric domains to phase match. In this approach the waveguide maintains a high intensity throughout the crystal while quasi-phase matching maintains phase matching conditions. The most important results from our study is that we have demonstrated that we can create 10 micron waveguides in every direction throughout the crystal forming 10 micron optical waveguide circuitry throughout the bulk. Current work is focused on developing this fixed waveguide for quasi-phase matched second harmonic generation.