Brès, CamilleGlesk, IvanPrucnal, Paul R.2011-12-192011-12-192011-12-19200710.1016/j.optcom.2006.10.011https://infoscience.epfl.ch/handle/20.500.14299/75810We propose and demonstrate a reconfigurable tunable encoder for two-dimensional time–wavelength optical code division multiple access (OCDMA). This encoder is capable of creating 2D codes with variable code weight, enabling differentiated service provisioning. The demonstrated novel scheme uses ultra-fast optical delay lines and all-optical sampling while operating at 115 Gchip/s. Our proposed architecture provides an all-optical method of varying the code weight on a bit-per-bit basis, while maintaining the core architecture of a tunable OCDMA encoder.Optical fiber communicationsCode division multi-accessOptical Samplingtext::journal::journal article::research article