Quantum detection of wavelength division multiplexing optical coherent signals in lossy channels

Atsushi Waseda, Masahide Sasaki, Masahiro Takeoka, Mikio Fujiwara, Morio Toyoshima, Hidema Tanaka

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

We numerically evaluate the wavelength division multiplexing (WDM) data transmission of coherent phase-shift keying (PSK) and quadrature amplitude modulation (QAM) signals in optical fiber communication and deep-space communication channels with conventional homodyne-based (dyne-type) detections and various quantum detection strategies. We show the quantitative gap between these detection strategies and especially in the quantum-limited region where the quantum noise seriously limits the transmission rate. For an extremely weak signal input power, there is a crucial gap between the capacity limit and the transmission rates of the WDM system with dyne-type detections. We show that this gap is filled by applying a collective square root detection (SRD) only for each channel, not necessary for quantum collective decoding among WDM channels.

本文言語English
ホスト出版物のタイトルARES 2010 - 5th International Conference on Availability, Reliability, and Security
ページ619-624
ページ数6
DOI
出版ステータスPublished - 2010
外部発表はい
イベント5th International Conference on Availability, Reliability, and Security, ARES 2010 - Krakow, Poland
継続期間: 2010 2 152010 2 18

出版物シリーズ

名前ARES 2010 - 5th International Conference on Availability, Reliability, and Security

Conference

Conference5th International Conference on Availability, Reliability, and Security, ARES 2010
国/地域Poland
CityKrakow
Period10/2/1510/2/18

ASJC Scopus subject areas

  • 計算理論と計算数学
  • 安全性、リスク、信頼性、品質管理

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