Saturable-Absorber-Based Phase-Preserving Amplitude Regeneration of RZ DPSK Signals

Author

Le, Quang Trung ; Bramerie, Laurent ; Nguyen, Hoang Trung ; Gay, Mathilde ; Lobo, Sebastien ; Joindot, Michel ; Oudar, Jean-Louis ; Simon, Jean-Claude

Author_Institution

FOTON, Univ. de Rennes 1, Lannion, France

Volume

22

Issue

12

fYear

2010

fDate

6/15/2010 12:00:00 AM

Firstpage

887

Lastpage

889

Abstract

We experimentally investigate a new generation of multiple-quantum-well semiconductor saturable absorber for all-optical phase-shift-keying signal regeneration. The device under study exhibits a reflectivity which decreases when the input signal power increases. This characteristic can be seen as a power limiting function which could be used for phase-preserving amplitude noise reduction, hence preventing from nonlinear phase noise accumulation along a transmission link. The device efficiency is demonstrated at 42.7 Gb/s; a fiber launched power margin of 2 dB and receiver sensitivity improvement up to 5.5 dB are obtained.

Keywords

differential phase shift keying; optical communication equipment; optical fibre communication; optical saturable absorption; phase noise; quantum well devices; semiconductor quantum wells; RZ DPSK signals; all-optical phase-shift-keying signal regeneration; bit rate 42.7 Gbit/s; fiber launched power margin; multiple-quantum-well semiconductor saturable absorber; nonlinear phase noise accumulation; phase-preserving amplitude noise reduction; phase-preserving amplitude regeneration; power limiting function; receiver sensitivity; reflectivity; transmission link; All-optical regeneration; differential phase-shift keying (DPSK); saturable absorber (SA);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2047103

Filename

5445057