70-GHz-Spaced 40 × 42.7 Gb/s Transpacific Transmission Over 9400 km Using Prefiltered CSRZ-DPSK Signals, All-Raman Repeaters, and Symmetrically Dispersion-Managed Fiber Spans

T. Tsuritani*, K. Ishida, A. Agata, K. Shimomura, I. Morita, T. Tokura, H. Taga, T. Mizuochi, N. Edagawa, S. Akiba

*この研究の対応する著者

研究成果: Article査読

40 被引用数 (Scopus)

抄録

70-GHz-spaced 40 × 42.7 Gb/s prefiltered carrier-suppressed return-to-zero differential phase-shift keying (CSRZ-DPSK) signals have been transmitted over transpacific distances for the first time, using all-Raman repeaters with two pump-wavelengths, dispersion-managed fiber commercially available in volume, and an ETDM receiver. In this paper, first, in order to enhance the spectral efficiency, the impact of bandlimitation to a CSRZ-DPSK signal was experimentally investigated in comparison to a conventional CSRZ-on-off-keying (OOK) signal, and we found that the bandlimitation tolerance of CSRZ-DPSK signal was smaller than that of CSRZ-OOK signal in back-to-back condition. We also confirmed that the prefiltering CSRZ-DPSK signal with up to 65 GHz bandlimitation potentially had better transmission performance than the prefiltered CSRZ-OOK signal. In addition, we found that, although the nonlinear transmission penalty was increased by bandlimitation, this penalty for CSRZ-DPSK signal was smaller than that for CSRZ-OOK signal. Through this study, long-term stability of the transmission performance was also evaluated with low-speed signal polarization scrambling without using any polarization mode dispersion (PMD) compensation.

本文言語English
ページ(範囲)215-224
ページ数10
ジャーナルJournal of Lightwave Technology
22
1
DOI
出版ステータスPublished - 2004 1月
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学

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