Code Flexibility of 2-D Time-Spreading Wavelength-Hopping In OCDMA Systems Bazan, Taher M. ; Harle, David ; Andonovic, Ivan Abstract Publication: IEEE Journal of Selected Topics in Quantum Electronics Pub Date: 2007 DOI: 10.1109/JSTQE.2007.905506 Bibcode: 2007IJSTQ..13.1378B