Nonlinear Effects in Photonic Materials - Abstract
Gual i Coca, Alexandre
A periodically poled lithium niobate (LiNbO3) waveguide was characterised for the aplication in all optical wavelength conversion. Wavelength conversion was achieved by cascaded second harmonic generation (SHG) of the continous-wave pump and difference frequency generation (DFG) of the SH-wave and the data signal. Characterisation was done to analyse conversion eficiency for different input powers and for different input wavelengths. Conversion of phase modulated data signals of 40, 80 and 160 Gbaud is presented. Error free operation with negligible penalty is achieved for differential phase shift keying (DPSK) and differential quadrature phase shift keying (DQPSK) modulation.