Zervas, M.N., Laming, R.I. and Payne, D.N.
Second-generation erbium-doped fibre amplifiers for advanced optical communications
At 4th International Conference on Telecommunications, United Kingdom.
18 - 21 Apr 1993.
The erbium doped fibre amplifier (EDFA)  has seen rapid development and is now established as a key component in future optical networks. To date, EDFA development has been driven by specific requirements, primarily the single-channel, point-to-point fibre links. There are, however, many more applications which may require, for example, either broadband or narrowband amplifiers and signal-processing functions. In addition, non-telecommunication applications can benefit enormously by the use of EDFAs
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