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Analysis of dual-stage erbium-doped fibre amplifiers with passive equalisation filters

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2 Author(s)
Yu, A. ; Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK ; O'Mahony, M.J.

The gain and noise properties of dual-stage gain flattened erbium doped fibre amplifiers (EDFA) are analysed. Simple expressions are derived to aid the design and understanding of the dual-stage EDFAs. Simulation is also carried out to determine the behaviour of EDFAs when subject to different operating parameters. It is found that a dual-stage EDFA incorporating an equalisation filter, variable attenuator and gain control makes it ideal for use as an on-line optical amplifier in WDM networks

Published in:

Optoelectronics, IEE Proceedings -  (Volume:146 ,  Issue: 3 )

Date of Publication:

Jun 1999

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