A 10 Gb/s optical code division multiplexing using 8-chip optical bipolar code and coherent detection

Author

Wada, Naoya ; Kitayama, Ken-ichi

Author_Institution

Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan

Volume

17

Issue

10

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1758

Lastpage

1765

Abstract

bOptical 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 10 GHz are generated experimentally. Temporal matched filtering for the 10 Gb/s OCDM is demonstrated using optical encoder and decoder, and their fundamental properties are investigated. Effect of interference code is shown experimentally and discussed. The novel coherent detection system with autocorrelation sidelobe suppression using balanced detector and local light source is proposed. The pseudocoherent detection is demonstrated experimentally by using a clock pulse. Advantageous properties of the coherent detection are shown. The fundamental functions to realize the gigabit rate OCDM system is revealed

Keywords

code division multiple access; light coherence; multiplexing; optical correlation; optical fibre networks; photodetectors; 10 Gbit/s; 8-chip optical bipolar code; Gb/s optical code division multiplexing; autocorrelation sidelobe suppression; balanced detector; clock pulse; coherent detection; coherent detection system; fiber-optic communication networks; fundamental properties; gigabit rate OCDM system; local light source; multiplexing method; optical bipolar codes; optical chip pulse phase; optical decoder; optical encoder; pseudocoherent detection; repetition frequency; Code division multiplexing; Communication networks; Filtering; Frequency; Matched filters; Optical fiber communication; Optical fiber filters; Optical fiber networks; Optical filters; Optical pulse generation;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.793747

Filename

793747