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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 24722–24728

LDPC-coded orbital angular momentum (OAM) modulation for free-space optical communication

Ivan B. Djordjevic and Murat Arabaci  »View Author Affiliations


Optics Express, Vol. 18, Issue 24, pp. 24722-24728 (2010)
http://dx.doi.org/10.1364/OE.18.024722


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Abstract

An orbital angular momentum (OAM) based LDPC-coded modulation scheme suitable for use in FSO communication is proposed. We demonstrate that the proposed scheme can operate under strong atmospheric turbulence regime and enable 100 Gb/s optical transmission while employing 10 Gb/s components. Both binary and nonbinary LDPC-coded OAM modulations are studied. In addition to providing better BER performance, the nonbinary LDPC-coded modulation reduces overall decoder complexity and latency. The nonbinary LDPC-coded OAM modulation provides a net coding gain of 9.3 dB at the BER of 10−8. The maximum-ratio combining scheme outperforms the corresponding equal-gain combining scheme by almost 2.5 dB.

© 2010 OSA

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.4080) Fiber optics and optical communications : Modulation
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: October 14, 2010
Revised Manuscript: November 2, 2010
Manuscript Accepted: November 3, 2010
Published: November 10, 2010

Citation
Ivan B. Djordjevic and Murat Arabaci, "LDPC-coded orbital angular momentum (OAM) modulation for free-space optical communication," Opt. Express 18, 24722-24728 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-24-24722


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References

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