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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 25, Iss. 11 — Nov. 1, 2007
  • pp: 3519–3527

Unrepeated WDM Transmission Systems Based on Advanced First-Order and Higher Order Raman-Copumping Technologies

Stefano Faralli, Gabriele Bolognini, Maria Adelaide Andrade, and Fabrizio Di Pasquale

Journal of Lightwave Technology, Vol. 25, Issue 11, pp. 3519-3527 (2007)


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Abstract

We compare standard fiber Raman laser and new high-power- and low relative-intensity-noise (RIN)-copumping technologies for long-span unrepeated wavelength-division-multiplexing (WDM) transmission systems. We show that, by using enhanced forward-error-correction techniques and by optimizing the transmission-system parameters in terms of signal power per channel, dispersion map, and copropagating on–off Raman gain, both copumping technologies allow successful transmission of 8 × 10-Gb/s WDM channels over more than 70 dB of standard single-mode fiber. However, transmission experiments point out that only the newly proposed high-power and low-RIN lasers can guarantee realistic system margins and can potentially provide further span-reach enhancement when used in optimized higher order copumping configurations.

© 2007 IEEE

Citation
Stefano Faralli, Gabriele Bolognini, Maria Adelaide Andrade, and Fabrizio Di Pasquale, "Unrepeated WDM Transmission Systems Based on Advanced First-Order and Higher Order Raman-Copumping Technologies," J. Lightwave Technol. 25, 3519-3527 (2007)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-25-11-3519

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