We demonstrate novel optical signal processing functions based on self-induced nonlinear polarization rotation in a semiconductor optical amplifier (SOA). Numerical and experimental results are presented, which demonstrate that a nonlinear polarization switch can be employed to achieve all-optical logic. We demonstrate an all-optical header processing system, an all-optical seed pulse generator for packet synchronization, and an all-optical arbiter that can be employed for optical buffering at a bit rate of 10 Gb/s. Experimental results indicate that optical signal processing functions based on self-polarization rotation have a higher extinction ratio and a lower power operation compared with similar functions based on self-phase modulation.
© 2004 IEEE
N. Calabretta, Y. Liu, F. M. Huijskens, M. T. Hill, H. de Waardt, G. D. Khoe, and H. J. S. Dorren, "Optical Signal Processing Based on Self-Induced Polarization Rotation in a Semiconductor Optical Amplifier," J. Lightwave Technol. 22, 372- (2004)