All-optical Phase-preserving Amplitude Regeneration through Optical Phase Conjugation in a Polarization-selected Orthogonal-pumped SOA Subsystem

Abstract

We experimentally investigate the phase-preserving amplitude regeneration based on the optical phase conjugation process in a polarization-selected orthogonal-pump semiconductor optical amplifier (PSOP-SOA) subsystem, enabling the signal-to-noise ratio (SNR) improvement of 1.84dB for QPSK signals.