Rayleigh scattering effect on the gain efficiency and noise of erbium-doped fibre amplifiers
Rayleigh scattering effect on the gain efficiency and noise of erbium-doped fibre amplifiers
The effect of the internal Rayleigh scattering on the gain efficiency and noise of the erbium-doped fiber amplifier has been considered in detail. It is shown that excess background loss due to Rayleigh scattering at the signal and pump wavelengths dramatically reduces the optimum gain efficiency of either high-NA, low-concentration or confined-dopant erbium-doped fibers. Distributed feedback due to Rayleigh backscattering, on the other hand, degrades the noise performance of high gain amplifiers considerably. In applications where high gain and low noise figure are required, increasing the fiber NA and dopant confinement above an optimum value are shown to increase the required pump power dramatically due to the deleterious effects of Rayleigh backscattering.
468-471
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
1995
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
Zervas, M.N. and Laming, R.I.
(1995)
Rayleigh scattering effect on the gain efficiency and noise of erbium-doped fibre amplifiers.
IEEE Journal of Quantum Electronics, 31 (3), .
(doi:10.1109/3.364401).
Abstract
The effect of the internal Rayleigh scattering on the gain efficiency and noise of the erbium-doped fiber amplifier has been considered in detail. It is shown that excess background loss due to Rayleigh scattering at the signal and pump wavelengths dramatically reduces the optimum gain efficiency of either high-NA, low-concentration or confined-dopant erbium-doped fibers. Distributed feedback due to Rayleigh backscattering, on the other hand, degrades the noise performance of high gain amplifiers considerably. In applications where high gain and low noise figure are required, increasing the fiber NA and dopant confinement above an optimum value are shown to increase the required pump power dramatically due to the deleterious effects of Rayleigh backscattering.
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Published date: 1995
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Local EPrints ID: 78277
URI: http://eprints.soton.ac.uk/id/eprint/78277
ISSN: 0018-9197
PURE UUID: b6b8d6ef-bca5-496e-aa75-198ac27a020f
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:35
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Author:
M.N. Zervas
Author:
R.I. Laming
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