OPTICAL NETWORK ARCHITECTURES UTILIZING WAVELENGTH HOPPING TIME SPREADING CODES/

The paper reviews one approach to the realization of optical network a rchitectures based on code division principles. The approach relies on the utilization of a hybrid family of codes, the characteristics of w hich permit access to an unprecedented number of highly efficient opti cal codes, whilst supporting an increased number of simultaneous users . The codes are constructed from a combination of time spreading and w avelength division principles and are analogous to frequency hopping c odes in the electronic domain. The characteristics of these families o f codes will be presented and tile resultant system performance analyz ed. Optical code generation and correlation will be described in detai l. The realization of truly asynchronous optical networks with increas ed security supporting a large number of users becomes feasible throug h the utilization of the hybrid codes.