Demonstration of a Tunable Optical Correlation of a 10–15 Gbaud QPSK Data Signal using Nonlinear Wave Mixing at a Remotely Controlled Node

The remote control and monitoring of a tunable optical correlator based on nonlinear wave-mixing is demonstrated. The correlator is remotely controlled via the bidirectional transmission of multiple waves over an optical link. The effects of the temperature-drift and link backscattering are mitigated at the transmitter.