Abstract
We demonstrate for the first time 2.5 Gb/s four user O-CDMA operation at ≤ 10 <sup>-11</sup> BER utilizing programmable spectral phase encoding, an ultrasensitive (< 0.4 pJ/bit) PPLN-waveguide nonlinear waveform discriminator and 10G Ethernet receiver. © 2004 Optical Society of America.