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Proceedings Paper

Chaos synchronization and communication of mutual coupling laser ring based on incoherent injection
Author(s): Juju Hu; Junshan Ma; Jinzhong Lin
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Paper Abstract

A chaos secure communication system of mutual coupling lasers ring based on incoherent optical injection is proposed, in which fine tuning of optical frequency is not required compared with other schemes based on coherent optical injection. Therefore the secure communication scheme is attractive for experimental investigation. The dynamics of semiconductor lasers in the coupling ring are examined. Numerical investigations indicate that zero lag synchronization can be achieved under equal coupling time and strength of mutual coupling. Furthermore, by chaos shift keying (CSK), secure communication is simulated with a random bit stream of 1.0Gbit/s. The results confirm the possibility of applying incoherent schemes of mutual coupling lasers ring to realize chaotic secure communication.

Paper Details

Date Published: 19 November 2009
PDF: 8 pages
Proc. SPIE 7512, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Information Security, 75120D (19 November 2009); doi: 10.1117/12.837306
Show Author Affiliations
Juju Hu, Univ. of Shanghai for Science and Technology (China)
Jianxi Normal Univ. (China)
Junshan Ma, Univ. of Shanghai for Science and Technology (China)
Jinzhong Lin, Univ. of Shanghai for Science and Technology (China)


Published in SPIE Proceedings Vol. 7512:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Information Security
Cunlin Zhang; Tiegen Liu, Editor(s)

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