Suppression of WDM interference for error-free detection of ultrashort-pulse CDMA signals in spectrally overlaid hybrid WDM-CDMA operation

Author

Shen, S. ; Weiner, A.M.

Author_Institution

Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

Volume

13

Issue

1

fYear

2001

Firstpage

82

Lastpage

84

Abstract

We demonstrated the complete suppression of wavelength division multiplexing (WDM) interference for the error-free detection of ultrashort-pulse code division multiple access (CDMA) signals in spectrally overlaid optical WDM-CDMA hybrid operation by the use of narrowband spectral notch filters in the CDMA decoder and a fiber nonlinear thresholder. Our experimental results show the feasibility of CDMA detection in a scheme where WDM channels are overlaid on CDMA channels in the same spectral region.

Keywords

code division multiple access; high-speed optical techniques; interference suppression; notch filters; optical fibre networks; optical filters; optical receivers; optical signal detection; wavelength division multiplexing; CDMA decoder; WDM interference; error-free detection; fiber nonlinear thresholder; narrowband spectral notch filters; spectrally overlaid hybrid WDM-CDMA operation; ultrashort-pulse CDMA signals; ultrashort-pulse code division multiple access; wavelength division multiplexing; Arrayed waveguide gratings; Fiber nonlinear optics; Interference suppression; Multiaccess communication; Narrowband; Optical crosstalk; Optical filters; Optical pulse shaping; Ultrafast optics; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.903228

Filename

903228