The CSI has developed analytical techniques for constructing pseudo orthogonal words suitable for temporal CDMA. The performance of these sets of words have been studied with respect to bit-error rate and with respect to other coding methods. The CSI methodology and algorithms permit generalized solutions for any combination of users (words), weights, and taps. CLS has taken these solutions and has developed design rules for implementing the encoders and decoders and for comparing them with theoretical predictions. The design rules show that, depending on data rate, number of users, and bit error rate, there are regimes where an optical or an electrical implementation of the encoders/decoders is preferred.