Nonlinear-optical-loop-mirror-based, phase-preserving 2R regeneration of a high-duty-cycle RZ-DPSK signal

摘要

We use a NOLM with a directional attenuator for regeneration of 50% duty-cycle RZ-DPSK signal and demonstrate eye-opening improvement of 1.5 dB for a signal degraded by a combination of ASE noise and amplitude jitter.