We present a novel transmission system using self-wrapped WHTS OCDM signals to achieve enhanced transmission security. Distributed key is encoded and time-spread to hide under noise in the network. BER of 10-4 is demonstrated experimentally.
"Various authors have studied different aspects relevant to the successful implementation of OCDMA ,  in anticipation of recording tremendous success similar to wireless CDMA. Also of interest has been research into all optical means of signal processing ,  with the aim to further improve OCDMA system performance. It is expected that optical processing can help to overcome the limitation imposed by the bandwidth limited electronic signal processing. "
[Show abstract][Hide abstract] ABSTRACT: A simple in situ method to equalize power among individual wavelength pulses representing 2-D wavelength-hopping time-spreading optical code division multiple access (OCDMA) code originally generated by a fiber Bragg grating-based OCDMA encoder is presented. Experimental data obtained in a field-based multiuser OCDMA testbed shows that applying this method results in system performance enhancements, which was demonstrated by observing the improved bit error rate during the field trials.
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.