Comparison of 64 × 10 Gb/s NRZ and RZ transmission over 6,000 km using a dispersion-managed fiber solution

Author

Cornwell, W. Davi ; Edwards, Henry O. ; Taylor, Nigel H. ; Lotay, Davider S. ; Smith, Steve A. ; Hamidi, Seraj

Author_Institution

Submarine Photonics Application & Res. Center, Corning Opt. Fiber, Deeside, UK

fYear

2002

fDate

17-22 Mar 2002

Firstpage

292

Lastpage

293

Abstract

We have demonstrated NRZ transmission of 64 channels at 10.664 Gb/s over 6,000 km using a dispersion-managed fiber solution with a sufficient margin to make this a viable option for future submarine systems. This has been made possible by the very low dispersion slope and hence cumulative dispersion achieved using DMF. The NRZ transmitter, which only requires a single modulator, is simpler to implement than the RZ transmitter, thus reducing the terminal complexity and cost. NRZ is also more spectrally efficient, offering the possibility of closer channel spacing than with RZ. Overall, the higher peak powers for the RZ format meant that this format performed 0.75 dB better than NRZ.

Keywords

optical cables; optical fibre dispersion; optical transmitters; submarine cables; telecommunication network management; 10.664 Gbit/s; 6000 km; NRZ transmission; NRZ transmitter; RZ format; RZ transmitter; channels; closer channel spacing; complexity; cost; cumulative dispersion; dispersion-managed fiber solution; single modulator; spectrally efficient; submarine systems; very low dispersion slope; Costs; Decoding; Dispersion; Forward error correction; Modulation; Optical noise; Optical signal processing; Q factor; Signal to noise ratio; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002

Print_ISBN

1-55752-701-6

Type

conf

DOI

10.1109/OFC.2002.1036369

Filename

1036369