Multi-User Private Transmission With Chaotic Lasers

作者：Annovazzi Lodi Valerio^*; Aromataris Giuseppe; Benedetti Mauro

来源：IEEE Journal of Quantum Electronics, 2012, 48(8): 1095-1101.

DOI：10.1109/JQE.2012.2202373

• Communication system security
• optical chaos
• public key cryptography
• repeaters
• synchronization

In this paper, we propose a scheme for private data transmission using chaotic lasers, which is derived from the well-known public key cryptography. With this new approach, it is possible to exchange data between any couple of subscribers in a network, while schemes based on chaotic lasers are usually restricted to transmission between two specific users, sharing a twin laser pair. This is possible by introducing a provider, who is responsible of the network security. For each subscriber a couple of twin chaotic lasers is required, one being held by the provider and the other by the subscriber himself. The basic two-laser scheme of chaotic transmission is then used for secure data exchange, both between two subscribers and between a subscriber and the provider. Several arrangements can be considered, based on this architecture, including the use of an electro-optical repeater, which is studied in detail in this paper. More advanced solutions can be also implemented, e. g., using a three-laser scheme. The Lang-Kobayashi model is used for simulations. Experiments are performed using InP-integrated modules.

• 出版日期2012-8