Nonuniform Spectral Phase Encoding in Optical CDMA Networks

Author

Du, Yixue ; Yoo, S.J.B. ; Ding, Zhi

Author_Institution

California Univ., Davis, CA

Volume

18

Issue

23

fYear

2006

Firstpage

2505

Lastpage

2507

Abstract

We utilize a nonuniform encoding scheme for spectral phase encoding in optical code-division-multiple-access networks. This method improves the orthogonality of encoded waveforms between multiple users under synchronous transmission by compensating for the nonideal spectral shape of the subpicosecond mode-locked laser pulse source. Simulation results demonstrate five orders of magnitude of bit-error-rate reduction compared with the traditional uniform encoding scheme

Keywords

code division multiple access; error statistics; laser mode locking; optical fibre networks; optical pulse generation; phase coding; bit-error-rate reduction; mode-locked laser pulse source; optical CDMA networks; optical code-division-multiple-access networks; orthogonality; spectral phase encoding; Decoding; Encoding; Frequency; Interference; Laser mode locking; Multiaccess communication; Optical fiber networks; Optical pulses; Optical receivers; Pulse modulation; Multiple-user interference (MUI); optical code-division mupltiple-access (O-CDMA); spectral phase encoded time spreading (SPECTS);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2006.887228

Filename

4014266