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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 3 — Jan. 30, 2012
  • pp: 2379–2385

Coherent optical DFT-Spread OFDM transmission using orthogonal band multiplexing

Qi Yang, Zhixue He, Zhu Yang, Shaohua Yu, Xingwen Yi, and William Shieh  »View Author Affiliations


Optics Express, Vol. 20, Issue 3, pp. 2379-2385 (2012)
http://dx.doi.org/10.1364/OE.20.002379


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Abstract

Coherent optical OFDM (CO-OFDM) combined with orthogonal band multiplexing provides a scalable and flexible solution for achieving ultra high-speed rate. Among many CO-OFDM implementations, digital Fourier transform spread (DFT-S) CO-OFDM is proposed to mitigate fiber nonlinearity in long-haul transmission. In this paper, we first illustrate the principle of DFT-S OFDM. We then experimentally evaluate the performance of coherent optical DFT-S OFDM in a band-multiplexed transmission system. Compared with conventional clipping methods, DFT-S OFDM can reduce the OFDM peak-to-average power ratio (PAPR) value without suffering from the interference of the neighboring bands. With the benefit of much reduced PAPR, we successfully demonstrate 1.45 Tb/s DFT-S OFDM over 480 km SSMF transmission.

© 2012 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications

ToC Category:
Transmission Systems and Network Elements

History
Original Manuscript: October 3, 2011
Revised Manuscript: December 3, 2011
Manuscript Accepted: December 5, 2011
Published: January 19, 2012

Virtual Issues
European Conference on Optical Communication 2011 (2011) Optics Express

Citation
Qi Yang, Zhixue He, Zhu Yang, Shaohua Yu, Xingwen Yi, and William Shieh, "Coherent optical DFT-Spread OFDM transmission using orthogonal band multiplexing," Opt. Express 20, 2379-2385 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-3-2379


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