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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 9 — May. 6, 2013
  • pp: 11021–11030

On the long-memory filtering gain in optical high-order QAM transmission systems

Wei-Ren Peng, Hidenori Takahashi, Takehiro Tsuritani, and Itsuro Morita  »View Author Affiliations


Optics Express, Vol. 21, Issue 9, pp. 11021-11030 (2013)
http://dx.doi.org/10.1364/OE.21.011021


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Abstract

In this paper, we verify the effectiveness of the last-stage long memory filter (LMF) in mitigating the long-memory response (LMR) of hardware, i.e. the transmitter and receiver. Based on the experimental results, we draw the following conclusions: 1) LMF can effectively mitigate the LMR impact, such as transmitter reflections, and its efficiency is more significant for high-order QAM signals. 2) Using LMF, a partially-correlated pattern exhibits similar performance to that of an uncorrelated pattern both in back-to-back and after 320-km standard single mode fiber (SSMF) transmission. Moreover, a simple solution to the computational complexity of LMF, effective-tap (ET) LMF, is proposed and demonstrated.

© 2013 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4080) Fiber optics and optical communications : Modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 18, 2013
Revised Manuscript: February 24, 2013
Manuscript Accepted: February 24, 2013
Published: April 26, 2013

Citation
Wei-Ren Peng, Hidenori Takahashi, Takehiro Tsuritani, and Itsuro Morita, "On the long-memory filtering gain in optical high-order QAM transmission systems," Opt. Express 21, 11021-11030 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-9-11021


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References

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