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Full Characterization of Noise Figure Spectrum in a Single- Pumped Fiber Parametric Amplifier
Fiber optics amplifiers and oscillators Nonlinear optics four-wave mixing Raman effect
2015/6/10
For the first time, an asymmetric NF spectrum induced by both Raman induced excess noise and Raman modified pump transferred noise of a fiber parametric amplifier has been measured. Experimental resul...
Noise Figure Measurements in Phase-Insensitive and Phase-Sensitive Fiber Parametric Amplifier Cascade
Fiber optics amplifiers and oscillators Nonlinear optics four-wave mixing
2015/6/10
By cascading two non-degenerate inline fiber-optic parametric amplifiers, we observe NF ~2dB (beating phase-insensitive quantum limit) at 16-dB gain for the second (phase-sensitive)stage after subtrac...
Measurement of Sub-1dB Noise Figure in a Non-Degenerate Cascaded Phase-Sensitive Fibre Parametric Amplifier
Measurement Noise Figure Non-Degenerate Cascaded Phase-Sensitive Fibre Parametric Amplifier
2015/7/14
Noise figure (NF) spectrum as well as its signal-power-dependence in a non-degenerate cascaded phase-sensitive fibre parametric amplifier was characterized. A 0.8dB NF (2dB below the conventional quan...
New Results on the Noise Figure of HEMTs
the noise figure a high electron mobility transistor mathematical model
2010/12/15
In this communication, an accurate mathematical model for the noise figure of a high electron mobility transistor is developed. This model represents a substantial improvement of the Fukui model. In f...