Trade-off and design considerations of the erbium-doped fibre amplifier
Trade-off and design considerations of the erbium-doped fibre amplifier
The trade-off between gain efficiency and noise figure is evaluated for an optimised EDFA pumped at 980nm. It is shown that operating at maximum gain efficiency results in an increased noise figure well above the 3dB quantum limit and that any attempt to reduce the amplifier noise figure results in a decrease in gain efficiency. Alternatively, for a fixed amplifier gain and pump power, increasing the fibre NA and the dopant confinement in the core reduces the amplifier NF. Finally, the input pump power required to achieve a target NF is calculated as a function of the amplifier gain, fibre NA and dopant confinement.
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
20 May 1992
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Zervas, M.N., Laming, R.I. and Payne, D.N.
(1992)
Trade-off and design considerations of the erbium-doped fibre amplifier.
IEE Colloquium Optical Amplifiers for Communications, London, United Kingdom.
3 pp
.
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Conference or Workshop Item
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Abstract
The trade-off between gain efficiency and noise figure is evaluated for an optimised EDFA pumped at 980nm. It is shown that operating at maximum gain efficiency results in an increased noise figure well above the 3dB quantum limit and that any attempt to reduce the amplifier noise figure results in a decrease in gain efficiency. Alternatively, for a fixed amplifier gain and pump power, increasing the fibre NA and the dopant confinement in the core reduces the amplifier NF. Finally, the input pump power required to achieve a target NF is calculated as a function of the amplifier gain, fibre NA and dopant confinement.
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Published date: 20 May 1992
Venue - Dates:
IEE Colloquium Optical Amplifiers for Communications, London, United Kingdom, 1992-05-20
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Local EPrints ID: 77345
URI: http://eprints.soton.ac.uk/id/eprint/77345
PURE UUID: c8adba76-59b4-4269-9c56-7d190f141116
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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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