IEEE Photonics Technology Letters · 1991 · 131 citations · 6 references
EngineeringElectrical EngineeringPhysicsOpticsOptoelectronicsPhotonicsFiber OpticsFiber-optic CommunicationOptical AmplifiersOptical Communication SystemsOptical Fiber PropagationOptical FibersBandwidthErbium-doped Fiber AmplifiersGainGain FlatteningNotch FiltersOptical AmplificationSaturationWavelength-division Multiplexing
An optical notch filter was incorporated within the length of all erbium-doped fiber amplifier. Careful choice of the filter characteristics and location made it possible to enhance the amplifier gain at wavelengths around 1550 nm. An amplifier with 27-dB gain and 33-nm bandwidth was demonstrated. The saturation characteristics of the amplifier were uniform across its gain spectrum, making it ideal for wavelength division multiplexed (WDM) application.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Low-noise erbium-doped fibre amplifier operating at 1.54μm
R.J. Mears, L. Reekie, I.M. Jauncey et al. · Electronics Letters · 1987 · 893 citations