Ultra-long-haul 40-Gbit/s-based DWDM transmission using optically prefiltered CS-RZ signals

Takehiro Tsuritani*, Akira Agata, Itsuro Morita, Noboru Edagawa, Shigeyuki Akiba


研究成果: Article査読

16 被引用数 (Scopus)


Ultra-long-haul 42.7-Gbit/s-based dense wavelength-division multiplexing (DWDM) transmission using optically prefiltered carrier-suppressed return-to-zero (CS-RZ) signal has been experimentally investigated. First, we have numerically and experimentally evaluated the impact of 3-dB bandwidth and filter detuning of bandlimiting filters on the 42.7-Gbit/s CS-RZ signal in back-to-back condition. We found that the asymmetrically filtered CS-RZ signal had a great potential for ultra-DWDM applications. Next, we have numerically and experimentally investigated the basic transmission characteristics of a 45-GHz-wide prefiltered CS-RZ signal, such as the robustness against residual dispersion, nonlinear effects, and PMD, and have confirmed that the prefiltered CS-RZ signal had less tolerance against fiber nonlinearity than an unfiltered CS-RZ signal. Finally, we have experimentally investigated the optimum filtering condition for 65- or 45-GHz-wide prefiltered CS-RZ signals in the ultra-long-haul DWDM transmission and have conducted the 70- and 50-GHz spaced 32 × 42.7 Gbit/s transmission using prefiltered CS-RZ signals. Through these experiments, we have confirmed the effectiveness of prefiltered CS-RZ signal ultra-long-haul DWDM transmission.

ジャーナルIEEE Journal on Selected Topics in Quantum Electronics
出版ステータスPublished - 2004 3月

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 電子工学および電気工学


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