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Advanced materials for fibre and waveguide amplifiers
James S.Wilkinson and Martin Hempstead
Recent research into optical fibre and waveguide amplifiers has been characterised by steady but unrevolutionary progress. Advances in the 1.5μm telecommunications window include erbium doped materials with flatter gain spectra, and planar amplifiers in a broad range of materials. At 1.3 μm, substantial improvements in praseodymium doped fluoride fibre amplifiers have been witnessed and chalcogenide glasses have shown promise for enhanced gain efficiency.
Current Opinion in Solid State and Materials Science (1997) Vol.2(2) pp.194-199
Southampton ePrint id: 78005
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