Comparison of Performances Between Two-stage and Single-stage L-Band EDFA

Document Type

Article

Publication Date

1-1-2003

Abstract

Gain enhancement in a long wavelength (L-band) erbium-doped fiber amplifier (EDFA) using a two-stage configuration with dual forward pumping scheme is demonstrated. Compared to a conventional single-stage amplifier, the two-stage amplifiers can improve the small signal gain over the wavelength region from 1560 to 1612 nm. A maximum gain enhancement of 9.6 dB is obtained for a two-stage type II amplifier at the signal wavelength of 1568 nm. The corresponding noise figure is also improved by 0.2 dB.

Keywords

Bandwidth, Communication systems, Doping (additives), Energy transfer, Erbium, Optical fibers, Optical pumping, Semiconductor lasers, Wavelength division multiplexing

Publication Title

Journal of Optical Communications

ISSN

0173-4911

Divisions

fac_eng,PHYSICS

Volume

24

Issue

6

Publisher

De Gruyter

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