Coherent-to-incoherent light conversion for optical correlators

Author

Parolari, Paola ; Marazzi, Lucia ; Rossetti, Damiano ; Maier, Guido ; Martinelli, Mario

Author_Institution

CoreCom, Consorzio Ricerche Elaborazione Commutazione Ottica Milano, Italy

Volume

18

Issue

9

fYear

2000

Firstpage

1284

Lastpage

1288

Abstract

The authors present a novel coherent-to amplified spontaneous emission (ASE) converter based on SOA´s cross-gain modulation (XGM) in a counterpropagating configuration. Experimental characterizations of the ASE converter with bit-error rate (BER) measurements at 2.5 and 5 Gb/s are shown. The device capabilities are exploited in a delay lines optical recognizer at 2.5 Gb/s. Recognition is based on a coherent-to-incoherent light conversion followed by a fiber array correlation filter. Experimental evidence here reported shows performance improvement in comparison with a scheme which adopts a standard telecom source.

Keywords

light coherence; optical arrays; optical communication equipment; optical correlation; optical fibres; optical modulation; spatial filters; 2.5 Gbit/s; 5 Gbit/s; ASE converter; SOA cross-gain modulation; bit-error rate measurements; coherent-to amplified spontaneous emission; coherent-to-incoherent light conversion; counterpropagating configuration; delay lines; fiber array correlation filter; optical correlators; optical recognizer; standard telecom source; Bit error rate; Correlators; Delay lines; Optical arrays; Optical devices; Optical fiber devices; Optical filters; Optical modulation; Spontaneous emission; Stimulated emission;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.871707

Filename

871707