Polarization-insensitive phase conjugation of QPSK signal using Bragg-scattering FWM in SOA

A Sobhanan, LN Venkatasubramani… - IEEE Photonics …, 2019 - ieeexplore.ieee.org
We experimentally demonstrate polarization-insensitive phase conjugate generation in a
semiconductor optical amplifier (SOA) using a counter-propagating and cross-polarized …