Low noise double pass L-band erbium-doped fiber amplifier
Document Type
Article
Publication Date
1-1-2004
Abstract
A new double pass long wavelength band erbium-doped fiber amplifier with enhanced noise figure characteristics is demonstrated. The noise figure is improved by about 2.6 dB with the incorporation of broadband conventional-band fiber Bragg grating (FBG) in between the two segments of erbium-doped fiber. By incorporating both the pre-amplifier and the FBG, the noise figure is further improved, which varies from 4.0 to 5.0 dB in the flat gain region from 1570 to 1600 nm. The gain varies from 32.0 to 33.4 dB within this region. The new amplifier with high gain and low noise figure can be useful as an inline amplifier in a wavelength division multiplexing transmission system.
Keywords
Erbium-doped fibre amplifier, L-band, Double pass EDFA, Optical communication, Noise figure improvement
Divisions
fac_eng,PHYSICS
Publication Title
Optics & Laser Technology
Volume
36
Issue
3
Publisher
Elsevier