Electronics Letters · 1997 · 28 citations · 3 references
EngineeringElectrical EngineeringOptical MaterialsOptoelectronicsPhotonicsFiber OpticsFiber-optic CommunicationOptical AmplifiersOptical FibersRare-earth-doped MaterialsBroadband Optical AmplificationErbium-doped Fiber AmplifiersOptical Gain MaterialsRare-earth-doped AmplifiersRare-earth-doped Fibers
3 dB bandwidths of 52 nm (1556 – 1608 nm) for a silicate erbium-doped fibre amplifier (EDFA) and 50 nm (1554 – 1604 nm) for a fluoride EDFA have been obtained by a novel scheme with two-stage erbium-doped fibres and an intermediate equaliser. Low noise figures and high pump efficiencies of the EDFAs have been confirmed.
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Erbium-doped fiber amplifier with flattened gain spectrum
Masao Tachibana, R.I. Laming, P.R. Morkel et al. · IEEE Photonics Technology Letters · 1991 · 131 citations