We demonstrate, for the first time to our knowledge, regeneration of a 42.66-Gb/s differential phase-shift keyed signal using a dual-pump nondegenerate four-wave-mixing-based fiber-optic parametric amplifier. The regenerative performance of the subsystem is characterized in terms of bit-error rate against narrowband and wideband introduced noise. While a strong receiver sensitivity improvement, up to 20 dB, is noticed against narrowband noise, against quasi-random (wideband) noise we observe a regeneration of 2.7 dB.
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- differential phase-shift keying
- optical parametric amplification
- phase-sensitive amplification
Frascella, P., Sygletos, S., Garcia Gunning, F. C., Weerasuriya, R., Grüner-Nielsen, L., Phelan, R., O'Gorman, J., & Ellis, A. D. (2011). DPSK signal regeneration with a dual-pump nondegenerate phase-sensitive amplifier. IEEE Photonics Technology Letters, 23(8), 516-518. . https://doi.org/10.1109/LPT.2011.2113330