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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 27, Iss. 19 — Oct. 1, 2009
  • pp: 4256–4261

Investigation of Transparency of FWM in SOA to Advanced Modulation Formats Involving Intensity, Phase, and Polarization Multiplexing

Giampiero Contestabile, Luca Banchi, Marco Presi, and Ernesto Ciaramella

Journal of Lightwave Technology, Vol. 27, Issue 19, pp. 4256-4261 (2009)

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We experimentally investigate the real transparency of four-wave mixing (FWM) in semiconductor optical amplifiers to modulation formats involving intensity, phase, and polarization multiplexing. We exploit two different FWM polarization-independent schemes (that make use of two pumps) to wavelength-convert 40 Gb/s single-polarization and 80 Gb/s polarization-multiplexed signals in case of both nonreturn-to-zero ${ON}$–${OFF}$ keying (NRZ-OOK) and NRZ differential phase-shift keying modulation formats. We found that, although FWM conversion is transparent to modulation formats employing phase and intensity, polarization-multiplexed signals pose serious limitations to all-optical processing transparency.

© 2009 IEEE

Giampiero Contestabile, Luca Banchi, Marco Presi, and Ernesto Ciaramella, "Investigation of Transparency of FWM in SOA to Advanced Modulation Formats Involving Intensity, Phase, and Polarization Multiplexing," J. Lightwave Technol. 27, 4256-4261 (2009)

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