An Efficient DFG Induced Wavelength Exchanged-OPC Using Only Two Ti:PPLN Waveguides

Wavelength Exchanged Optical Phase Conjugation (WE-OPC) through Difference Frequency Generation (DFG) employing two identical Titanium doped Periodically Poled Lithium Niobate (Ti:PPLN) waveguides having same grating period and a single pump source is theoretically analyzed and simulated resulting in higher conversion efficiency of OPC. WE-OPC has been found very effective in mitigating nonlinearity and increasing spectral efficiency in optical transmission systems. In our proposed model with 10 channels, much higher conversion efficiencies of about 3.3 dB and 3.49 dB are obtained for higher frequency band to lower frequency band and vice versa respectively.