All silica S-band double-pass erbium-doped fiber amplifier

Author

Rosolem, J.B. ; Juriollo, A.A. ; Arradi, R. ; Coral, A.D. ; Oliveira, J.C.R.F. ; Romero, Murilo A.

Author_Institution

CPqD-Telebras, Campinas, Brazil

Volume

17

Issue

7

fYear

2005

fDate

7/1/2005 12:00:00 AM

Firstpage

1399

Lastpage

1401

Abstract

Double-pass (DP) and single-pass (SP) erbium-doped depressed cladding fiber amplifiers designed for S-band operation are evaluated under changes of the input optical power, pumping power, and fiber bending radius. The DP configuration employs the usual combination of a circulator and a Faraday rotator mirror while the SP is based on the copropagating scheme. The amplifiers were characterized in terms of gain and noise figure. It is demonstrated that the DP topology shows much improved gain performance compared to the SP configuration although the noise figure is slightly degraded by counterpropagating amplified spontaneous emission.

Keywords

Faraday effect; bending; erbium; laser cavity resonators; laser mirrors; laser noise; optical circulators; optical fibre amplifiers; optical fibre cladding; optical pumping; optical rotation; silicon compounds; superradiance; Faraday rotator mirror; S-band fiber amplifier; SiO₂:Er; all silica fiber amplifier; amplified spontaneous emission; circulator; copropagating scheme; depressed cladding fiber amplifiers; double-pass fiber amplifier; erbium-doped fiber amplifier; fiber bending radius; input optical power; noise figure; optical gain; pumping power; single pass fiber amplifier; Erbium-doped fiber amplifier; Noise figure; Operational amplifiers; Optical design; Optical fiber amplifiers; Optical noise; Power amplifiers; Semiconductor optical amplifiers; Silicon compounds; Stimulated emission; Optical circulators; optical fiber amplifiers; optical fiber communication;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.848544

Filename

1453623