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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 20 — Sep. 27, 2010
  • pp: 21100–21110

Real-time experimental demonstration of optical OFDM symbol synchronization in directly modulated DFB laser-based 25km SMF IMDD systems

X. Q. Jin, R. P. Giddings, E. Hugues-Salas, and J. M. Tang  »View Author Affiliations


Optics Express, Vol. 18, Issue 20, pp. 21100-21110 (2010)
http://dx.doi.org/10.1364/OE.18.021100


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Abstract

A simple optical OFDM (OOFDM) synchronization technique utilizing subtraction and Gaussian windowing at the symbol rate is proposed and implemented in FPGA-based OOFDM receivers. End-to-end real-time symbol synchronization of 128-QAM-encoded OOFDM signals at raw bit rates of 6.56Gb/s is experimentally demonstrated, for the first time, over directly modulated DFB laser-based 25km SMF intensity modulation and direct detection (IMDD) systems. Experimental investigations show that the proposed synchronisation technique offers a number of salient advantages including low complexity, fast tracking speed, high accuracy and suitability for high-capacity optical transmission systems.

© 2010 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4080) Fiber optics and optical communications : Modulation
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 31, 2010
Revised Manuscript: September 14, 2010
Manuscript Accepted: September 17, 2010
Published: September 21, 2010

Citation
X. Q. Jin, R. P. Giddings, E. Hugues-Salas, and J. M. Tang, "Real-time experimental demonstration of optical OFDM symbol synchronization in directly modulated DFB laser-based 25km SMF IMDD systems," Opt. Express 18, 21100-21110 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-20-21100


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References

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