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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 15 — Jul. 29, 2013
  • pp: 17505–17511

1.76Tb/s Nyquist PDM 16QAM signal transmission over 714km SSMF with the modified SCFDE technique

Zhennan Zheng, Rui Ding, Fan Zhang, and Zhangyuan Chen  »View Author Affiliations

Optics Express, Vol. 21, Issue 15, pp. 17505-17511 (2013)

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Nyquist pulse shaping is a promising technique for high-speed optical fiber transmission. We experimentally demonstrate the generation and transmission of a 1.76Tb/s, polarization-division-multiplexing (PDM) 16 quadrature amplitude modulation (QAM) Nyquist pulse shaping super-channel over 714km standard single-mode fiber (SSMF) with Erbium-doped fiber amplifier (EDFA) only amplification. The superchannel consists of 40 subcarriers tightly spaced at 6.25GHz with a spectral efficiency of 7.06b/s/Hz. The experiment is successfully enabled with the modified single carrier frequency domain estimation and equalization (SCFDE) scheme by performing training sequence based channel estimation in frequency domain and subsequent channel equalization in time domain. After 714km transmission, the bit-error-rate (BER) of all subcarriers are lower than the forward error correction limit of 3.8 × 10−3.

© 2013 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: May 20, 2013
Revised Manuscript: June 27, 2013
Manuscript Accepted: July 9, 2013
Published: July 15, 2013

Zhennan Zheng, Rui Ding, Fan Zhang, and Zhangyuan Chen, "1.76Tb/s Nyquist PDM 16QAM signal transmission over 714km SSMF with the modified SCFDE technique," Opt. Express 21, 17505-17511 (2013)

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