Phase regeneration of DPSK signals in a highly nonlinear lead-silicate W-type fiber
- Ettabib, Mohamed
- Parmigiani, Francesca
- Feng, Xian
- Jones, Liam
- Kakande, Joseph
- Slavík, Radan
- Poletti, Francesco
- Ponzo, Giorgio M.
- Shi, Jindan
- Petrovich, Marco N.
- Loh, Wei H.
- Petropoulos, Periklis
- Richardson, David J.
DOIAbstract
We experimentally demonstrate phase regeneration of a 40-Gb/s differential phase shift keying (DPSK) signal in a 1.7-m long highly nonlinear lead silicate W-type fiber using a degenerate two-pump phase-sensitive amplifier (PSA). Results show an improvement in the Error Vector Magnitude (EVM) and a reduction of almost a factor of 2 in the phase noise of the signal after regeneration for various noise levels at the input
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