All-optical processing by fiber delay and four-wave mixing of high-bit-rate nonreturn-to-zero signals for timing extraction by optical injection locking

Author

Bilenca, A. ; Dahan, D. ; Lasri, J. ; Eisenstein, G.

Author_Institution

Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel

Volume

14

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

852

Lastpage

854

Abstract

We report an all-optical processing scheme which generates a strong spectral component at the bit rate frequency of a high-speed nonreturn-to-zero data stream. The processed signal can be used for timing extraction by direct optical injection locking. The scheme is based on multiplying the data signal by its delayed replica. A dispersion compensating fiber serves as a delay line and the multiplication is performed by four-wave mixing in a dispersion-shifted fiber. Simulated results and experimental confirmations are demonstrated.

Keywords

multiwave mixing; optical delay lines; optical fibre dispersion; optical information processing; synchronisation; all-optical processing; bit rate frequency; delay line; direct optical injection locking; dispersion compensating fiber; dispersion-shifted fiber; fiber delay; four-wave mixing; high-bit-rate nonreturn-to-zero signals; high-speed nonreturn-to-zero data stream; multiplication; optical injection locking; strong spectral component; timing extraction; Bit rate; Data mining; Delay; Fiber nonlinear optics; Four-wave mixing; Frequency; High speed optical techniques; Nonlinear optics; Signal processing; Timing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2002.1003115

Filename

1003115