| Spectrally Efficient Optical CDMA Using Coherent Phase-Frequency Coding (2005) | |||||||||||||||
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| We demonstrate feasibility of a spectrally efficient wavelength-division-multiplexing-compatible optical code-division multiple-access system using 16 phase-locked laser lines within an 80-GHz tunable window as frequency bins and an ultrahigh frequency resolution spectral phase encoder--decoder. Coding and decoding using binary [0, ] phase chips were demonstrated for four users at 2.5 Gb/s, and a single coded signal was separated from four copropagating signals, with bit-error rate 10 9 . | |||||||||||||||
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