Ocdma network architectures, optical coders and methods for optical coding

摘要: The invention relates to a OCDMA network architectures. In order achieve less expensive frequency-hopping coding for high number of users, the comprises: plurality means (81) passband filtering and multiplexing broadband signals, each said being assigned group users (80) signal provided by user respective with different frequency filtered signals one group; periodic optical coder (82) encoding multiplexed multiplexing, using code originating from groups; (83) combining output coders single signal. equally further architecture, suitable corresponding methods.