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Proceedings Paper

Physical layer security in fiber-optic networks using optical signal processing
Author(s): Paul R Prucnal; Mable P. Fok; Yanhua Deng; Zhenxing Wang
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Paper Abstract

Using optical processing techniques, we experimentally enhance the physical layer security of optical communication systems. We exploit optical encryption using fiber nonlinearity to achieve real time data encryption. By implementing interleaved waveband switching modulation and variable two-code keying to the system, the security of the data is further enhanced. Based on spread spectrum, we also demonstrate optical steganography such that the stealth signal is transmitted underneath system noise. Optical steganography in WDM and optical CDMA systems is experimentally demonstrated. We also propose and study optical CDMA-based backup channels that improve service availability without wasting the bandwidth in the backup channel. The multi-layered security provided improves the confidentiality and availability of the network.

Paper Details

Date Published: 1 December 2009
PDF: 10 pages
Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 76321M (1 December 2009); doi: 10.1117/12.852911
Show Author Affiliations
Paul R Prucnal, Princeton Univ. (United States)
Mable P. Fok, Princeton Univ. (United States)
Yanhua Deng, Princeton Univ. (United States)
Zhenxing Wang, Princeton Univ. (United States)


Published in SPIE Proceedings Vol. 7632:
Optical Transmission Systems, Switching, and Subsystems VII
Dominique Chiaroni, Editor(s)

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