Wavelength conversion in nonlinear optical polymer waveguides

Abstract

This work reports second harmonic generation (SHG) and difference frequency generation (DFG) in nonlinear optical (NLO) polymer waveguides, operating at the optical communication band. We developed a new NLO polymer with relatively low material loss and poling-induced loss at the interacting wavelengths. Quasi-phase- matched wavelength conversions are demonstrated with a normalized SHG efficiency of 5.4 %W-1cm-2, and a DFG efficiency of - 50 dB at pump power level of 10 mW (0.775 μm).