• Title : 10Gb/s optical code division multiplexing using 8-chip optical bipolar code and coherent detection
• Authors : N. Wada and K. Kitayama
• Journal : IEEE/OSA J.Lightwave Technol., vol.17, No.10, pp. 1758-1765, 1999.
• Abstract : Optical code division multiplexing (OCDM) using optical bipolar code and coherent detection is a new multiplexing method for future fiber-optic communication networks. Some optical bipolar codes, which are described by the combination of phase of optical chip pulses, with a repetition frequency 10GHz are generated experimentally. Temporal matched filtering for the 10Gb/s OCDM is demonstrated using optical encoder and decoder, and their fundamental properties are investigated. The novel coherent detection system with autocorrelation sidelobe suppression using balanced detector and local light source is proposed. The pseudocoherent detection is demonstrated experimentally is using a clock pulse. Advantageous properties of the coherent detection are shown. The fundamental functions to realize the gigabit rate OCDM system is revealed.
• Key words : Coherent detection, fiber-optic communication interference noise, optical bipolar code, optical code division multiplexing (OCDM), sidelobe suppression.

[Back to the List of Publications]