Spectrally Efficient Frequency-Domain Optical CDM Employing QAM Based on Electrical Spatial Code Spreading

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概要

• 論文の詳細を見る

• We propose frequency-domain optical code-division- multiplexing (CDM) employing quadrature-amplitude-modulation (QAM) using two of multi-level (M-ary) data generated based on electrical-domain spatial code spreading. Its spectral efficiency is enhanced compared to the conventional scheme with amplitude-shift-keying (ASK) using only one of M-ary data. Although it demands the recovery of amplitude and optical phase information, the practicality of the receiver is retained with self-homodyne detection using a phase-shift-keying (PSK) pilot light. Performance is theoretically evaluated and the optimal parameters are derived. Finally, the feasibility of the proposed technique is experimentally confirmed.

• The Institute of Electronics, Information and Communication Engineersの論文
• 2011-10-01

著者

• Kaneko Shin

  NTT Access Network Service Systems Laboratories, NTT Corporation

• Doi Yoshiyuki

  Ntt Photonics Laboratories Ntt Corporation

• Kim Sang-yuep

  Ntt Access Network Service Systems Laboratories Ntt Corporation

• YAMADA Takashi

  NTT Photonics Laboratories

• Miki Noriki

  Ntt Access Network Service Systems Laboratories Ntt Corporation

• Hadama Hisaya

  Ntt Access Network Service Systems Laboratories Ntt Corporation

• Kimura Hideaki

  Ntt Access Network Service Systems Laboratories

• Kaneko Shin

  Ntt Access Network Service Systems Laboratories Ntt Corporation

• Takiguchi Koichi

  Ntt Photonics Laboratories Ntt Corporation

• YAMAZAKI Hiroshi

  NTT Photonics Laboratories, NTT Corporation

• Yamazaki Hiroshi

  Ntt Photonics Laboratories Ntt Corporation

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