We demonstrate wavelength-shift-free 3R-regenerator for 40-Gb/s optical return-to-zero (RZ) system by optical parametric amplification (OPA) with a clock-modulated pump in highly nonlinear fiber. The power penalty is improved by 2.6 dB, and the signal power is amplified by 7 dB.
- Four-wave mixing
- Nonlinear optics
- Optical fiber communication
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering