Title :
Phase and Polarization Diversity for Minimum MAI in OCDMA Networks
Author :
Cooper, A. Brinton, III ; Khurgin, Jacob B. ; Xu, Shuangmei ; Kang, Jin U.
Author_Institution :
Johns Hopkins Univ., Baltimore
Abstract :
A novel coherent optical code-division multiple-access (OCDMA) network based on spectral phase coding and on phase and polarization diversity balanced reception is proposed. A rigorous model of the network is developed, which shows that spectral efficiencies of 1 bps/Hz and beyond can be achieved by minimizing multiple-access interference (MAI) and by canceling beat noise. While the system achieves full capacity under bit synchronism, it also offers competitive performance at up to 25% of full capacity, even when completely asynchronous. Tree and ring network configurations assure synchronization, making the proposed system robust in the presence of dispersion and phase noise.
Keywords :
code division multiple access; optical fibre communication; phase coding; OCDMA; beat noise cancelation; bit synchronism; coherent optical code-division multiple-access; coherent optical fiber communication; diversity balanced reception; multiple-access interference; phase diversity; polarization diversity; ring network; spectral phase coding; tree network; Adaptive optics; Communication system security; Multiaccess communication; Multiple access interference; Noise cancellation; Optical noise; Optical receivers; Polarization; Radio frequency; Speckle; Coherent optical fiber communication; optical code-division multiaccess; spectral phase coding;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2007.903873
