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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 2 — Jan. 28, 2013
  • pp: 2065–2071

Optical steganography based on amplified spontaneous emission noise

Ben Wu, Zhenxing Wang, Yue Tian, Mable P. Fok, Bhavin J. Shastri, Daniel R. Kanoff, and Paul R. Prucnal  »View Author Affiliations

Optics Express, Vol. 21, Issue 2, pp. 2065-2071 (2013)

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We propose and experimentally demonstrate an optical steganography method in which a data signal is transmitted using amplified spontaneous emission (ASE) noise as a carrier. The ASE serving as a carrier for the private signal has an identical frequency spectrum to the existing noise generated by the Erbium doped fiber amplifiers (EDFAs) in the transmission system. The system also carries a conventional data channel that is not private. The so-called “stealth” or private channel is well-hidden within the noise of the system. Phase modulation is used for both the stealth channel and the public channel. Using homodyne detection, the short coherence length of the ASE ensures that the stealth signal can only be recovered if the receiver closely matches the delay-length difference, which is deliberately changed in a dynamic fashion that is only known to the transmitter and its intended receiver.

© 2013 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2920) Fiber optics and optical communications : Homodyning
(060.4785) Fiber optics and optical communications : Optical security and encryption

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 31, 2012
Revised Manuscript: January 2, 2013
Manuscript Accepted: January 3, 2013
Published: January 18, 2013

Ben Wu, Zhenxing Wang, Yue Tian, Mable P. Fok, Bhavin J. Shastri, Daniel R. Kanoff, and Paul R. Prucnal, "Optical steganography based on amplified spontaneous emission noise," Opt. Express 21, 2065-2071 (2013)

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