Experimental Demonstration of Remotely Controlled and Powered Tunable Optical 2-4 Taps Correlator of a 20-100 Gbit/s QPSK Channel Based on Laser-Delivered Bias and Control Signals

We experimentally demonstrate a 2-4 tap QPSK correlation using a cascade of MZIs which are remotely controlled through an optical link. The delivered power to the correlator is tuned and different target patterns are tailored.