Experimental studies of communications with chaotic semiconductor lasers

Abstract

This thesis experimentally investigates issues relevant to the use of semiconductor lasers for optical secure communications systems. The motivation behind this work is in exploiting chaotic dynamics to mask a message, transmit the message to a receiver and recover the message.
The method of chaos generation employed in experimentation is using external-cavity semiconductor lasers. Chaos synchronisation properties, an important consideration for secure chaotic communication systems are studied. A demonstration of message encoding and decoding, and a comparison of different receiver configurations is presented. The advantages on system security of selecting the external-cavity length to increase security is discussed. A demonstration of chaotic wavelength division multiplexing is presented.

Date of Award	2003
Original language	English
Awarding Institution	University of Wales, Bangor
Supervisor	K. Alan Shore (Supervisor)