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Secure passive optical network based on chaos synchronization |
Optics Letters, Vol. 37, Issue 21, pp. 4501-4503 (2012)
http://dx.doi.org/10.1364/OL.37.004501
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Abstract
A physical-enhanced secure passive optical network (PON) based on chaos synchronization is proposed and numerically demonstrated. In this scheme, the chaotic output of an external-cavity semiconductor laser is used as the transmission carrier in both downstream and upstream directions, the chaos modulation technology is used to encrypt the downstream data, and the multiplexed subcarrier-modulation technology is adopted for the upstream transmission. Simulation results demonstrate that both the downstream data and the upstream data encrypted into the chaotic carriers can be successfully decrypted; moreover, the security of downstream can be enhanced by properly increasing the bit rate, and the upstream security can be maintained at a high level. The proposed PON affords secure all-optical access at the physical layer.
© 2012 Optical Society of America
OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(140.1540) Lasers and laser optics : Chaos
(140.5960) Lasers and laser optics : Semiconductor lasers
(060.1155) Fiber optics and optical communications : All-optical networks
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: September 6, 2012
Revised Manuscript: September 27, 2012
Manuscript Accepted: September 28, 2012
Published: October 26, 2012
Citation
Ning Jiang, Chongfu Zhang, and Kun Qiu, "Secure passive optical network based on chaos synchronization," Opt. Lett. 37, 4501-4503 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-21-4501
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