Anritsu MS9740B - Measuring Optical Amplifier; Optical Amplifier Measurement Method

5.7 Measuring Optical Amplifier
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Measurement Functions
5.7 Measuring Optical Amplifier
5.7.1 Optical Amplifier Measurement Method
The following items can be measured by the optical amplifier functions.
● NF: Noise figure
● Gain: Gain
● Signal Wl: Amplified optical peak wavelength
● ASE Lvl/(Res): ASE level for amplified light
● Pin Lvl: Signal level input
● Pout Lvl: Signal level output
The noise figure and gain are calculated from the power of the optical
input to the optical amplifier (Pin), the power of the optical signal output
from the optical amplifier (Pout), and the ASE level (Pase).
For the calculation formula, refer to 5.7.7 “Calculation Method”.
Pin, Pout, and Pase are measured from the optical input to the optical
amplifier and the spectrum of the optical output of the optical amplifier.
Figure 5.7.1-1 Level Measured with Optical Amplifier Measurement
Function
This function has following setting items.
● Method
Selects the measurement method.
Spect Div Off:
Not using spectrum division method, Pout and Pase are measured by
the measured optical output spectrum.
Wavelength (nm)
Level (dBm)
Optical Input
Optical Output
Pase
Pout
Pin
Signal
Amplified
Spontaneous
Emission