1.14 b/s/Hz spectrally efficient 50 × 85.4-Gb/s transmission over 300 km using copolarized RZ-DQPSK signals

Noboru Yoshikane*, Itsuro Morita

*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

1.14 b/s/Hz spectrally efficient 50 × 85.4-Gb/s copolarized return-to-zero differential quarternary phase-shift keying (RZ-DQPSK) signals have been transmitted over 300 km of nonzero dispersion-shifted fiber (NZ-DSF), using optical prefiltering and conventional C-band erbium-doped fiber amplifier (EDFA) repeaters. In this study, in order to enhance the spectral efficiency, the impact of optical prefiltering on the RZ-DQPSK signal was experimentally investigated in comparison to the DQPSK signal, and we found that the RZ-DQPSK signal had better sensitivity with almost the same nonlinear tolerance than the DQPSK signal even with 65-GHz bandwidth optical prefiltering.

本文言語English
ページ(範囲)108-114
ページ数7
ジャーナルJournal of Lightwave Technology
23
1
DOI
出版ステータスPublished - 2005 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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