Fast wavelength-hopping time-spreading encoding/decoding for optical CDMA

Author

Yegnanarayanan, S. ; Bhushan, A.S. ; Jalali, B.

Author_Institution

Optoelectron. Circuits & Syst. Lab., California Univ., Los Angeles, CA, USA

Volume

12

Issue

5

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

573

Lastpage

575

Abstract

We demonstrate a new technique for implementation of fast wavelength-hopping incoherent optical code-division multiple-access (CDMA). The output pulse from a mode locked laser is spectrally broadened through supercontinuum generation. This then encoded into fast wavelength-hopped time-spread waveforms through a wavelength-selective time-delay device. At the receiver, matched-filter decoding is used to recover data. We present a 1-Gb/s digital transmission experiment through a 15-km dispersion-shifted (DS) single-mode fiber link. This technique avoids the need for a fast wavelength tunable optical source.

Keywords

code division multiple access; decoding; delays; encoding; laser mode locking; optical fibre dispersion; optical fibre networks; optical tuning; 1 Gbit/s; 15 km; Gb/s digital transmission experiment; dispersion-shifted single-mode fiber link; fast wavelength tunable optical source; fast wavelength-hopped time-spread waveforms; fast wavelength-hopping incoherent optical code-division multiple-access; fast wavelength-hopping time-spreading encoding/decoding; matched-filter decoding; mode locked laser; optical CDMA; output pulse; receiver; spectrally broadened; supercontinuum generation; wavelength-selective time-delay device; Decoding; Encoding; Fiber lasers; Fiber nonlinear optics; Laser mode locking; Multiaccess communication; Nonlinear optics; Optical pulse generation; Optical receivers; Supercontinuum generation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.841290

Filename

841290