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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 19 — Sep. 23, 2013
  • pp: 22808–22816

A single-channel 1.92 Tbit/s, 64 QAM coherent optical pulse transmission over 150 km using frequency-domain equalization

David Odeke Otuya, Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, and Masataka Nakazawa  »View Author Affiliations


Optics Express, Vol. 21, Issue 19, pp. 22808-22816 (2013)
http://dx.doi.org/10.1364/OE.21.022808


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Abstract

We demonstrate a single-channel 1.92 Tbit/s, 64 QAM coherent optical pulse optical time-division multiplexing (OTDM) transmission by utilizing frequency-domain equalization (FDE). FDE makes it possible to compensate precisely for the waveform distortions caused by hardware imperfections thus greatly improving the error vector magnitude (EVM) of the demodulated 64 QAM signal compared with that obtained with a conventional FIR filter. As a result, a coherent 64 QAM OTDM transmission over 150 km with a bit error rate of below the forward error correction limit of 2x10−3 (requiring 7% overhead) was achieved for the first time.

© 2013 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4080) Fiber optics and optical communications : Modulation
(060.4230) Fiber optics and optical communications : Multiplexing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 22, 2013
Revised Manuscript: August 26, 2013
Manuscript Accepted: September 12, 2013
Published: September 20, 2013

Citation
David Odeke Otuya, Keisuke Kasai, Masato Yoshida, Toshihiko Hirooka, and Masataka Nakazawa, "A single-channel 1.92 Tbit/s, 64 QAM coherent optical pulse transmission over 150 km using frequency-domain equalization," Opt. Express 21, 22808-22816 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-19-22808


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