Phase regeneration of phase-shift keying signals in highly nonlinear hybrid plasmonic waveguides

Phase regeneration of phase-shift keying signals is theoretically proposed, we believe for the first time, based on the efficient optical parametric amplification (OPA) process in a highly nonlinear symmetric hybrid plasmonic waveguide. This optimized stacked waveguide with nonlinear organic materials has a relatively low loss of about 0.005 dB/mu m and an effective nonlinear OPA coupling coefficient up to 60 ps/m/W-1/2. The phase-recovery process was achieved in this waveguide within a length as short as 150 mu m. (C) 2013 Optical Society of America