https://research.aston.ac.uk/en/publications/suppression-of-wdm-four-wave-mixing-crosstalk-in-fibre-optic-para/
Suppression of WDM four-wave mixing crosstalk in fibre optic parametric amplifier using...
four wave mixingfibre opticparametric amplifiersuppressionwdm
https://research.chalmers.se/en/publication/206095
Quadrature demultiplexing using a degenerate vector parametric amplifier
We report on quadrature demultiplexing of a quadrature phase-shift keying (QPSK) signal into two cross-polarized binary phase-shift keying (BPSK) signals with...
using aparametric amplifierquadraturedemultiplexingdegenerate