Noise Figure » History » Version 14

HAENNIG, Gerald, 12/13/2015 03:57 PM

1 1 GOMEZ, Ramon
h1. Noise Figure
2 2 HAENNIG, Gerald
3 2 HAENNIG, Gerald
The Noise Figure has been measured with the FSV spectrum Analyzer.
4 2 HAENNIG, Gerald
5 2 HAENNIG, Gerald
The optical link output power is measured with an input termination (done with 50 Ohm termination instead of 75 Ohm as not available) at a temperature of 290 K.
6 2 HAENNIG, Gerald
7 2 HAENNIG, Gerald
Noise Factor :
8 2 HAENNIG, Gerald
9 2 HAENNIG, Gerald
F = No / kToBG (No : measured output power noise; k : Boltzman constant ;  To : ambiant temperature close to 290 K ; B : measurement bandwidth ; G : RF Gain)
10 2 HAENNIG, Gerald
11 2 HAENNIG, Gerald
Noise Figure :
12 2 HAENNIG, Gerald
13 2 HAENNIG, Gerald
NF=10*log10(Ftot)
14 2 HAENNIG, Gerald
15 9 HAENNIG, Gerald
|_. Frequency |_. Optical Link Noise Figure |
16 11 HAENNIG, Gerald
|_. MHz |_. dB |
17 14 HAENNIG, Gerald
|^ '700' |^ '30.9' |
18 6 HAENNIG, Gerald
| 1000 | 30.1 |
19 6 HAENNIG, Gerald
| 1500 | 31.3 |
20 6 HAENNIG, Gerald
| 2000 | 32.6 |
21 6 HAENNIG, Gerald
| 2300 | 33.4 |