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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 25 — Dec. 6, 2010
  • pp: 26149–26154

A high spectral efficiency optical OFDM scheme based on interleaved multiplexing

Cheng Lei, Hongwei Chen, Minghua Chen, and Shizhong Xie  »View Author Affiliations

Optics Express, Vol. 18, Issue 25, pp. 26149-26154 (2010)

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By multiplexing two OFDM signals with the same channel space and bit rate together in an interleaved mode, a novel optical multiplexing scheme is proposed and experimentally demonstrated. Since the channel space is halved, the spectral efficiency is doubled compared with conventional OFDM. It is proved that the orthogonality between the subcarriers is maintained as long as the data is real. With discrete Fourier transform, the proposed scheme has similar computational complexity as conventional OFDM and single sideband modulation is conveniently achieved. A 10 Gb/s transmission system is set up, and proves the feasibility and efficiency of the scheme experimentally.

© 2010 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4250) Fiber optics and optical communications : Networks
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 12, 2010
Revised Manuscript: November 15, 2010
Manuscript Accepted: November 15, 2010
Published: November 30, 2010

Cheng Lei, Hongwei Chen, Minghua Chen, and Shizhong Xie, "A high spectral efficiency optical OFDM scheme based on interleaved multiplexing," Opt. Express 18, 26149-26154 (2010)

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