Signal quality and BER performance improvement by wavelength conversion with an integrated three-port Mach-Zehnder interferometer

Author

Idler, W. ; Schilling, M. ; Daub, K. ; Baums, D. ; Körner, U. ; Lach, E. ; Laube, G. ; Wünstel, K.

Author_Institution

Optoelectron. Components Div., Alcatel SEL, Stuttgart, Germany

Volume

31

Issue

6

fYear

1995

fDate

3/16/1995 12:00:00 AM

Firstpage

454

Lastpage

455

Abstract

2.5 Gbit/s all-optical wavelength conversion is reported with a novel monolithically integrated Mach-Zehnder interferometer realised in InGaAs/InP MQW technology. The three-port MZI wavelength converter enables strong improvement of extinction ratios up to 11 dB in dynamic operation and signal chirp reduction by optical crossphase modulation. This improvement of signal quality by wavelength conversion is confirmed by a gain of 2.3 dB in system sensitivity after transmission over 100 km (nondispersion-shifted) fibre compared to the standard 2.5 Gbit/s direct modulation performance of a DFB laser

Keywords

III-V semiconductors; Mach-Zehnder interferometers; gallium arsenide; indium compounds; integrated optics; optical frequency conversion; optical receivers; semiconductor quantum wells; 100 km; 2.3 dB; 2.5 Gbit/s; BER performance; InGaAsP-InP; MQW technology; MZI wavelength converter; all-optical wavelength conversion; dynamic operation; extinction ratios; integrated three-port Mach-Zehnder interferometer; nondispersion-shifted fibre; optical crossphase modulation; signal chirp reduction; signal quality;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19950306

Filename

375888