Beat-noise-tolerant gigabit/s O-CDMA technique using spectral amplitude coding of coherent multi-frequency light

Abstract

We present two gigabit/s spectral-amplitude-coding O-CDMA techniques that use coherent multi-frequency light. The techniques achieve high beat-noise tolerance by either employing multi-frequency self-homodyne detection or using spectral M-ary ASK based on electrical-domain spatial-code spreading.