Noise Figure » History » Version 46
Version 45 (HAENNIG, Gerald, 12/13/2015 04:39 PM) → Version 46/57 (GOMEZ, Ramon, 12/13/2015 07:14 PM)
h1. Noise Figure
The In this scetion, purpose of this section is to assess the thermal noise degradation induced by the optical link. Related measurement parameter is the Noise Figure.
The Noise Figure (measured has been measured with the FSV spectrum Analyzer). Analyzer.
The optical link output power is measured with an input termination (done with 50 Ohm termination instead of 75 Ohm as it wasn't not available) at a temperature of 290 K.
Noise Factor :
F = No / kToBG (No : measured output power noise; k : Boltzman constant ; To : ambiant temperature close to 290 K ; B : measurement bandwidth ; G : RF Gain)
Noise Figure :
NF=10*log10(Ftot)
The table below contains the Noise Figure measured on the optical link.
|_. Parameter |_. Unit |\5=. Measurements |
|_. Frequency |_. MHz |=. 700 |=. 1000 |=. 1500 |=. 2000 |=. 2300 |
|_. Optical Link Noise Figure |_. dB |=. 30.9 |=. 30.1 |=. 31.3 |=. 32.6 |=. 33.4 |
The In this scetion, purpose of this section is to assess the thermal noise degradation induced by the optical link. Related measurement parameter is the Noise Figure.
The Noise Figure (measured has been measured with the FSV spectrum Analyzer). Analyzer.
The optical link output power is measured with an input termination (done with 50 Ohm termination instead of 75 Ohm as it wasn't not available) at a temperature of 290 K.
Noise Factor :
F = No / kToBG (No : measured output power noise; k : Boltzman constant ; To : ambiant temperature close to 290 K ; B : measurement bandwidth ; G : RF Gain)
Noise Figure :
NF=10*log10(Ftot)
The table below contains the Noise Figure measured on the optical link.
|_. Parameter |_. Unit |\5=. Measurements |
|_. Frequency |_. MHz |=. 700 |=. 1000 |=. 1500 |=. 2000 |=. 2300 |
|_. Optical Link Noise Figure |_. dB |=. 30.9 |=. 30.1 |=. 31.3 |=. 32.6 |=. 33.4 |