Spectral amplitude-coding optical CDMA system using Mach-Zehnder Interferometers

Author

Lin, Cheing-Hong ; Wu, Jingshown ; Tsao, Hen-Wai ; Yang, Chun-Liang

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

23

Issue

4

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

1543

Lastpage

1555

Abstract

In this paper, we propose a family of newly constructed codes to suppress the phase-induced intensity noise (PIIN) in spectral amplitude-coding (SAC) optical code division multiple access (OCDMA) systems. These new codes are derived from modified prime codes and their cross-correlation is not larger than one. We also present a novel SAC-OCDMA system employing the new codes together with Mach-Zehnder interferometers to eliminate the multi-user interference (MUI). Compared with the systems employing modified quadratic congruence codes (MQC codes), numerical results verify that our proposed system can more effectively suppress the PIIN and eliminate MUI. Hence, the number of simultaneously users and total transmission rate increases significantly.

Keywords

Mach-Zehnder interferometers; code division multiple access; codes; optical fibre communication; Mach-Zehnder interferometers; cross-correlation; modified prime codes; modified quadratic congruence codes; multiuser interference; optical CDMA system; optical code division multiple access; phase-induced intensity noise; spectral amplitude-coding; total transmission rate; Helium; High speed optical techniques; Interference elimination; Mach-Zehnder interferometers; Multiaccess communication; Noise level; Optical interferometry; Optical noise; Phase noise; System performance; Mach–Zehnder interferometer; Optical code-division multiple access (OCDMA); modified prime codes; multi-user interference (MUI); spectral amplitude coding (SAC);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2005.844205

Filename

1424131