Electronics Letters · 1988 · 25 citations · 2 references
EngineeringElectrical EngineeringMicroelectronicsOptoelectronicsSemiconductor DevicesFiber-optic CommunicationHigh-frequency Semiconductor DevicesLow-noise Circuit DesignNoise In Semiconductor DevicesOptical AmplifiersOptical Communication SystemsBroadband Optical AmplificationEquivalent Input Noise CurrentHigh-frequency Amplifier DesignHigh-frequency ElectronicsHigh-speed TransmissionLow-noise AmplifiersNoise BandwidthOptical Receivers
A broadband, low-noise HEMT preamplifier is designed for very high-speed fibre-optic transmission systems. A 20 GHz 3dB down bandwidth and 7.6pA/√(Hz) averaged input equivalent noise current density from 100 MHz to 18 GHz are achieved using inductor peaking techniques and low stray capacitance chip resistors.
2