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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 26 — Dec. 12, 2011
  • pp: B32–B39

Highly-sensitive coherent optical detection of M-ary frequency-shift keying signal

Kazuro Kikuchi and Masayuki Osaki  »View Author Affiliations

Optics Express, Vol. 19, Issue 26, pp. B32-B39 (2011)

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We demonstrate M-ary frequency-shift keying (FSK) optical modulation and digital coherent detection, aiming at applications to space communications, where high receiver sensitivity is the most crucial consideration. The proposed FSK transmitter and receiver are based on the coherent orthogonal frequency-division multiplexing (OFDM) technique and feature simple configuration and low computational complexity. By offline bit-error rate measurements using a 256-FSK signal without the forward error-correction code, we obtain the receiver sensitivity as high as 3.5 photons per bit at the bit-error rate of 10−3. The experimental result is in good agreement with simulations.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2920) Fiber optics and optical communications : Homodyning

ToC Category:
Subsystems for Optical Networks

Original Manuscript: September 12, 2011
Revised Manuscript: October 25, 2011
Manuscript Accepted: October 25, 2011
Published: November 16, 2011

Virtual Issues
European Conference on Optical Communication 2011 (2011) Optics Express

Kazuro Kikuchi and Masayuki Osaki, "Highly-sensitive coherent optical detection of M-ary frequency-shift keying signal," Opt. Express 19, B32-B39 (2011)

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