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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 17 — Aug. 16, 2010
  • pp: 17913–17921

Power efficient subcarrier modulation for intensity modulated channels

Johnny Karout, Erik Agrell, and Magnus Karlsson  »View Author Affiliations

Optics Express, Vol. 18, Issue 17, pp. 17913-17921 (2010)

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We compare formats for optical intensity modulation limited by thermal noise with the assumption of having ideal devices. At the same bitrate and bandwidth, a hitherto unknown format turns out to be more power efficient than known formats. This new modulation, which is a hybrid between on-off keying and phase-shift keying, belongs to the subcarrier modulation family. At asymptotically high signal-to-noise ratios, this hybrid scheme has a 1.2 dB average electrical power gain and 0.6 dB average optical power gain compared to OOK, while it has a 3.0 dB average electrical power gain and 2.1 dB average optical power gain compared to subcarrier QPSK.

© 2010 Optical Society of America

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

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 27, 2010
Revised Manuscript: July 22, 2010
Manuscript Accepted: July 27, 2010
Published: August 5, 2010

Johnny Karout, Erik Agrell, and Magnus Karlsson, "Power efficient subcarrier modulation for intensity modulated channels," Opt. Express 18, 17913-17921 (2010)

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