Evaluation of Security Aspects of Some Optical Code Division Multiple Access (OCDMA) Systems

Optical Code Division Multiple Access (OCDMA) is an attractive multiple accessing technique that is used in fiber optics network. As the data being transmitted can be analysed be the eavesdroppers. Therefore, security is a major concern in OCDMA. We have analysed and examined different modulation schemes for three dimensional Single Pulse per plane for direct detection in case of On-Off Keying or differential detection in case of Code Shift Keying and Differential Phase Shift Keying to deduce which of these techniques are best suited against eavesdroppers.