Interference cancellation within both the detection and carrier phase estimation processes for asynchronous coherent OCDMA systems is proposed. At the receiver, knowledge gained from the synchronization and detection is used to rebuild and remove the interference from the detected signal. The key advantage of the proposed system is that it can be performed directly in the electrical domain. Since an essential implementation issue with coherent optical communications is generated by the linewidth of the laser source, the effect of laser linewidth on the cancellation is investigated. By applying cancellation within the phase estimation, the stringent requirements with respect to the laser linewidth can be relaxed.
|Number of pages||5|
|State||Published - 2000|
|Event||2000 IEEE 6th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2000) - Parsippany, NJ, USA|
Duration: 6 Sep 2000 → 8 Sep 2000
|Conference||2000 IEEE 6th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2000)|
|City||Parsippany, NJ, USA|
|Period||6/09/00 → 8/09/00|