![Tutorial Fiber Amplifiers, Part 9: noise of fiber amplifiers, excess noise, quantum noise, attenuation, quasi-three-level, spontaneous emission Tutorial Fiber Amplifiers, Part 9: noise of fiber amplifiers, excess noise, quantum noise, attenuation, quasi-three-level, spontaneous emission](https://www.rp-photonics.com/img/edfa_nf8_fw.png)
Tutorial Fiber Amplifiers, Part 9: noise of fiber amplifiers, excess noise, quantum noise, attenuation, quasi-three-level, spontaneous emission
![SOLVED: (mNoise factor is defined as a ratio of input signal-to-noise power ratio Si/Ni to output signal-to-noise power ratio So/No indicating how much the signal-to-noise power ratio deteriorates as the signal propagates SOLVED: (mNoise factor is defined as a ratio of input signal-to-noise power ratio Si/Ni to output signal-to-noise power ratio So/No indicating how much the signal-to-noise power ratio deteriorates as the signal propagates](https://cdn.numerade.com/ask_images/d5e9f75a9943477f8e51e7842b9c4559.jpg)
SOLVED: (mNoise factor is defined as a ratio of input signal-to-noise power ratio Si/Ni to output signal-to-noise power ratio So/No indicating how much the signal-to-noise power ratio deteriorates as the signal propagates
![Gain and noise-figure analysis for cascaded stages. (a) X-band LNA. (b)... | Download Scientific Diagram Gain and noise-figure analysis for cascaded stages. (a) X-band LNA. (b)... | Download Scientific Diagram](https://www.researchgate.net/publication/266378558/figure/fig6/AS:392224585076742@1470525036316/Gain-and-noise-figure-analysis-for-cascaded-stages-a-X-band-LNA-b-K-band-LNA.png)
Gain and noise-figure analysis for cascaded stages. (a) X-band LNA. (b)... | Download Scientific Diagram
![Amplifier gain and noise figure as a function of input optical power... | Download Scientific Diagram Amplifier gain and noise figure as a function of input optical power... | Download Scientific Diagram](https://www.researchgate.net/publication/225500290/figure/fig1/AS:340430072893449@1458176262604/Amplifier-gain-and-noise-figure-as-a-function-of-input-optical-power-obtained-from.png)
Amplifier gain and noise figure as a function of input optical power... | Download Scientific Diagram
![PDF] Theory and Measurement Techniques for the Noise Figure of Optical Amplifiers | Semantic Scholar PDF] Theory and Measurement Techniques for the Noise Figure of Optical Amplifiers | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/36a53f73d73c0546a1067d893c27319c28a64308/12-Figure6-1.png)