High gain L-band erbium-doped fiber amplifier with two-stage double-pass configuration
Document Type
Article
Publication Date
1-1-2003
Abstract
An experiment on gain enhancement in the long wavelength band erbium-doped fiber amplifier (L-band EDFA) is demonstrated using dual forward pumping scheme in double-pass system. Compared to a single-stage single-pass scheme, the small signal gain for 1580 nm signal can be improved by 13.5 dB. However, a noise figure penalty of 2.9 dB was obtained due to the backward C-bund ASE from second stage and the already amplified signal from the first pass that extracting energy from the forward C-band ASE. The maximum gain improvement of 13.7 dB was obtained at a signal wavelength of 1588 nm while signal and total pump powers were fixed at -30 dBm and 92 mW, respectively.
Keywords
Amplified spontaneous emission, Erbium-doped fibre, L-band erbium-doped fiber amplifier, Optical amplifier, Two-stage erbium-doped fiber amplifier
Divisions
fac_eng,PHYSICS
Publication Title
Pramana
Volume
61
Issue
1
Publisher
Indian Academy of Sciences