Comparison of the static and dynamic properties of single- and double-pass partially gain-clamped two-stage L-band EDFAs

Author

Xia, Bing ; Pudo, Dominik ; Chen, Lawrence R.

Author_Institution

Photonic Syst. Group, McGill Univ., Montreal, Que., Canada

Volume

15

Issue

4

fYear

2003

fDate

4/1/2003 12:00:00 AM

Firstpage

519

Lastpage

521

Abstract

We investigate the static and dynamic properties of partially gain-clamped two-stage L-band erbium-doped fiber amplifiers (EDFAs) in single- and double-pass configurations. While both amplifiers can be designed to provide the same gain-clamped performance, the double-pass configuration requires /spl ap/40% less pump power and /spl ap/22% shorter length of EDF in the second stage, and has a corresponding improvement in power conversion efficiency of 45%, but at the expense of an increase in noise figure (/spl ap/0.5 dB) and dynamic gain variation.

Keywords

erbium; laser noise; optical communication equipment; optical fibre amplifiers; optical pumping; wavelength division multiplexing; 45 percent; double-pass configuration; double-pass configurations; double-pass partially gain-clamped two-stage L-band EDFAs; dynamic gain variation; dynamic properties; gain-clamped performance; noise figure; power conversion efficiency; pump power; single-pass partially gain-clamped two-stage L-band EDFAs; static properties; Bragg gratings; Broadband amplifiers; Erbium-doped fiber amplifier; Fiber gratings; L-band; Noise measurement; Performance gain; Power amplifiers; Power conversion; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.809294

Filename

1190189