Optical fast frequency hopping CDMA: Principle, simulation and experiment

In this dissertation, we address a new method of optical code division multiple access (CDMA) communications we invented and referred to as optical fast frequency hopping- (OFFH-) CDMA. We define the fundamental principles of the OFFH-CDMA and propose a set of implementation solutions. We have found, that multiple Bragg gratings (MBG) offer the most elegant method to implement the OFFH-CDMA encoding/decoding functions. Theoretical and computer simulation analysis have verified and demonstrated the effectiveness of the new principle. In addition, we propose new encoding/decoding architectures that enable a network to accommodate subscribers with different data rates and performance levels. We also propose and investigate a version of the system especially appropriate for communications in hostile temperature and stability conditions. Finally, we build an OFFH-CDMA experimental setup that includes sixteen encoders and four programmable decoders and demonstrate successful encoding/decoding operation in various communications scenarios.