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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 11 — Nov. 1, 2012
  • pp: 885–894

4-PAM for High-Speed Short-Range Optical Communications

Krzysztof Szczerba, Petter Westbergh, Johnny Karout, Johan S. Gustavsson, Åsa Haglund, Magnus Karlsson, Peter A. Andrekson, Erik Agrell, and Anders Larsson  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 4, Issue 11, pp. 885-894 (2012)
http://dx.doi.org/10.1364/JOCN.4.000885


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Abstract

In this work, we compare 4-pulse amplitude modulation and on–off keying modulation formats at high speed for short-range optical communication systems. The transmission system comprised a directly modulated vertical-cavity surface-emitting laser operating at a wavelength of 850 nm, an OM3+ multimode fiber link, and a photodetector detecting the intensity at the receiver end. The modulation formats were compared both at the same bit-rate and at the same symbol rate. The maximum bit-rate used was 25 Gbps. Propagation distances up to 600 m were investigated at 12.5 Gbps. All measurements were done in real time and without any equalization.

© 2012 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4080) Fiber optics and optical communications : Modulation

ToC Category:
Regular Papers

History
Original Manuscript: April 20, 2012
Revised Manuscript: August 25, 2012
Manuscript Accepted: September 7, 2012
Published: October 31, 2012

Citation
Krzysztof Szczerba, Petter Westbergh, Johnny Karout, Johan S. Gustavsson, Åsa Haglund, Magnus Karlsson, Peter A. Andrekson, Erik Agrell, and Anders Larsson, "4-PAM for High-Speed Short-Range Optical Communications," J. Opt. Commun. Netw. 4, 885-894 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-11-885

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